Nature Explorer
Animals, plants, weather, and ecosystems — observation skills that connect kids to the world outside.
Cross-curricular · Ages 7–12 · 3,600 questions
Broad knowledge.
Broad knowledge.
Balanced thinking.
A gift of curiosity for growing minds.
PolygonKid weaves nature, science, life skills, art, logic, and creative imagination into playful quizzes — not exam drills. Kids explore, parents see a clear hexagon profile of strengths.
Sample scores (max 3.0):
- Nature Explorer 2.2
- Science Detective 2.5
- Life Skills 1.8
- Art Sense 2.0
- Logic Power 2.3
- Creative Mind 2.7
📖 Sample Questions · 12 questions are randomly selected for each grade
What do the questions look like?
Each grade consists of 600 questions covering all six dimensions of the hexagram.
The following are randomly selected questions from the question banks of each grade (2 questions per dimension), along with the answers and explanations. This will help you quickly understand the style and depth of the questions.
💡 All the questions can be fully viewed in the mini-program "Practice". It also supports filtering by grade and dimension.
Grade 1 · Random 12 Questions
🌿 Natural Observation
- What do you see in the sky on a sunny day? ✅ B. A bright sun 💡 The sun shines bright and yellow on a sunny day
- What makes leaves on trees sway and your kite fly high? ✅ B. Wind 💡 Wind is moving air that pushes leaves and kites
🔬 Science Inquiry
- You drop a metal coin into a bowl of water. What will happen? ✅ B. It will sink to the bottom 💡 Metal is denser than water
- What happens when you bring a magnet close to a paperclip? ✅ B. The paperclip jumps and sticks to the magnet 💡 Magnets attract iron and steel
🏠 Life Practice
- What is the first thing you should do after waking up in the morning? ✅ B. Get out of bed and brush your teeth 💡 A clean, fresh start helps you feel awake
- Why is it important to wear clean clothes every day? ✅ B. Clean clothes keep your skin healthy and help you feel fresh and confident 💡 Clean clothes remove dirt and germs
🎨 Art Perception
- Which of these colors makes you think of fire and sunshine — a warm color? ✅ B. Orange 💡 Warm colors include red, orange, and yellow
- What kind of feeling does a straight horizontal line give you? ✅ B. Calm, quiet, and still 💡 Horizontal lines suggest peace and stability
🧩 Logic Reasoning
- Which is bigger — a cat or an elephant? ✅ B. An elephant 💡 Elephants are the largest land animals
- How many apples are there if you see three red apples and two green apples in a bowl? ✅ B. 5 💡 3 red + 2 green = 5 apples total
💭 Creative Imagination
- If you could have any superpower, which of these would let you help the most people? ✅ A. The power to make anyone smile 💡 A smile can turn a bad day into a good one
- If you could talk to animals, which animal would you talk to first and what would you ask? ✅ A. A dog — I would ask if it likes belly rubs 💡 Dogs are our closest animal friends
Grade 2 · Random 12 Questions
🌿 Natural Observation
- How many legs does an insect have? ✅ B. 6 💡 All insects have six legs
- What do caterpillars turn into after they build a cocoon or chrysalis? ✅ C. A butterfly or moth 💡 Caterpillars metamorphose into butterflies or moths
🔬 Science Inquiry
- What are the three primary colors that cannot be made by mixing other colors? ✅ B. Red, yellow, and blue 💡 Primary colors are the building blocks of all colors
- What two primary colors do you mix to make orange? ✅ B. Red and yellow 💡 Red + Yellow = Orange
🏠 Life Practice
- What should you eat to start your day with energy for learning and playing? ✅ B. A healthy breakfast like cereal, fruit, and milk 💡 Breakfast gives you energy for the morning
- Why is it important to wear clean clothes every day? ✅ B. Clean clothes keep your skin healthy and help you feel fresh and confident 💡 Clean clothes remove dirt and germs
🎨 Art Perception
- Artists often use warm colors like red, orange, and yellow to express certain feelings. What emotions do warm colors usually suggest? ✅ B. Energy, excitement, happiness, and warmth 💡 Warm colors suggest energy and happiness
- What feelings do cool colors like blue, green, and purple often suggest in a painting? ✅ B. Calm, peace, sadness, and thoughtfulness 💡 Cool colors suggest calm and thoughtfulness
🧩 Logic Reasoning
- What number comes next in this pattern? 2, 4, 6, 8, ? ✅ B. 10 💡 Add 2 each time: 8+2=10
- Find the missing number: 3, 6, 9, ?, 15, 18 ✅ C. 12 💡 Count by threes: 9+3=12
💭 Creative Imagination
- If you could invent a brand new holiday that the whole world would celebrate, what would it be about? ✅ A. A day where everyone gives one genuine compliment to three different people 💡 Kindness and compliments spread joy
- What special food would people eat on your invented holiday? ✅ B. Rainbow-colored sharing cookies 💡 Sharing makes everything richer
Grade 3 · Random 12 Questions
🌿 Natural Observation
- What is a still life drawing or painting? ✅ B. An artwork showing a group of everyday objects arranged together on a surface 💡 Still life depicts everyday objects
- When starting a still life drawing, why do artists often squint their eyes while looking at the objects? ✅ B. Squinting simplifies what you see — it blurs details and helps you see the big shapes, light areas, and dark shadows 💡 Squinting helps see big shapes and values
🔬 Science Inquiry
- What happens when you mix baking soda and vinegar together? ✅ B. It fizzes and bubbles wildly, producing carbon dioxide gas 💡 Baking soda + vinegar = CO₂ gas
- If you trap the gas from a baking soda and vinegar reaction in a bottle with a balloon on top, what happens? ✅ B. The balloon inflates because the carbon dioxide gas fills it up 💡 CO₂ gas fills and inflates the balloon
🏠 Life Practice
- What is a good way to make sure you are not late for school? ✅ B. Wake up with enough time to get ready without rushing 💡 A calm morning means a happy start
- On a cold winter day with snow outside, what should you wear? ✅ B. A warm coat, hat, gloves, and boots 💡 Dress for the weather to stay safe and comfortable
🎨 Art Perception
- What is one-point perspective in drawing? ✅ B. A technique where all lines that go into the distance meet at a single vanishing point on the horizon line 💡 Depth lines converge at one vanishing point
- What makes watercolor paint different from other types of paint like acrylic or tempera? ✅ B. Watercolor is transparent — light passes through the paint and bounces off the white paper underneath 💡 Watercolor is luminous and transparent
🧩 Logic Reasoning
- What shape comes next? Circle, Triangle, Circle, Triangle, ? ✅ B. Circle 💡 The pattern alternates: Circle, Triangle
- What comes next in this pattern? Square, Circle, Circle, Square, Circle, Circle, ? ✅ B. Square 💡 The pattern is Square, Circle, Circle repeating
💭 Creative Imagination
- What is origami, and where did it originate? ✅ B. The art of paper folding — it originated in Japan 💡 Origami is Japanese paper folding
- What are the two basic types of folds that almost all origami begins with? ✅ B. The valley fold and the mountain fold 💡 Valley fold (V) and mountain fold (Λ)
Grade 4 · Random 12 Questions
🌿 Natural Observation
- A stick insect looks exactly like a twig on a branch. What is this type of disguise called? ✅ B. Camouflage or mimicry 💡 Camouflage helps animals hide from predators
- A tiger's stripes help it hide in tall grass. Why do the stripes work so well? ✅ B. The stripes break up the tiger's shape and look like shadows among the grass 💡 Stripes break up the tiger's outline
🔬 Science Inquiry
- What happens when you mix red and yellow paint together? ✅ C. Orange 💡 Red + Yellow = Orange
- What two primary colors do you mix to make green? ✅ B. Blue and yellow 💡 Blue + Yellow = Green
🏠 Life Practice
- You are at a restaurant and the bill is $16.00. You want to leave a 15% tip. How much is the tip? ✅ B. $2.40 💡 10% + 5% = 15% tip calculation
- If you earn $12 for babysitting and want to use the 50-30-20 rule, how much goes to saving, spending, and sharing? ✅ B. $6 save, $3.60 spend, $2.40 share 💡 50% saving, 30% spending, 20% sharing
🎨 Art Perception
- What was the Impressionist movement, and why was it so revolutionary? ✅ B. A 19th-century art movement where artists painted outdoors to capture fleeting effects of light and color 💡 Impressionists captured light and moments outdoors
- What did Claude Monet's series paintings — like his haystacks and water lilies — teach us about light? ✅ B. That the same subject looks completely different depending on the time of day, season, and weather 💡 Light transforms what we see
🧩 Logic Reasoning
- Look at this pattern of shapes: Triangle, Square, Pentagon, Hexagon, ?. What comes next? ✅ B. Heptagon — a 7-sided shape 💡 Each shape adds one side
- What are the next two numbers in this pattern? 1, 1, 2, 3, 5, 8, ?, ? ✅ B. 13, 21 💡 Fibonacci: each number is the sum of the two before
💭 Creative Imagination
- If you could invent one device to solve a major environmental problem, what would it do? ✅ B. An autonomous ocean drone that collects plastic waste while using solar power 💡 Clean the ocean without causing new problems
- What everyday product would you redesign to be truly circular — meaning zero waste from creation to disposal? ✅ B. A smartphone designed with modular parts that can be easily replaced, upgraded, and fully recycled 💡 Modular design eliminates waste
Grade 5 · Random 12 Questions
🌿 Natural Observation
- What is biodiversity, and why is it important to measure in an ecosystem survey? ✅ B. The variety of different living things in an area — high biodiversity usually means a healthier, more resilient ecosystem 💡 Biodiversity is the richness of life in an ecosystem
- What is an invasive species? ✅ B. A non-native species that spreads rapidly in a new environment and causes harm to native species 💡 Invasive species lack natural predators in new environments
🔬 Science Inquiry
- What is a variable in a science experiment? ✅ B. Any factor that can be changed, measured, or controlled — the independent variable is what you change, the dependent variable is what you measure 💡 Variables are the changing parts of an experiment
- Why is it important to change only ONE variable at a time in a controlled experiment? ✅ B. If you change multiple variables at once, you cannot tell which one caused the result 💡 Change one thing at a time for a fair test
🏠 Life Practice
- What is the difference between a job and a career? ✅ B. A job is a specific position of employment; a career is a long-term professional journey that includes education, experiences, and multiple jobs in a field 💡 A job is a role; a career is a long-term journey
- What is networking, and how can even students your age start building a network? ✅ B. Building positive relationships with people who can offer guidance, support, and opportunities; students can start by connecting with teachers, coaches, family friends, and community members 💡 Networking is building genuine relationships
🎨 Art Perception
- What are the fundamental principles of design that artists and designers use to create effective compositions? ✅ B. Balance, contrast, emphasis, movement, pattern, rhythm, unity, and variety 💡 Design principles guide visual communication
- What is visual hierarchy, and why is it essential in design and art? ✅ B. Visual hierarchy organizes elements to show their order of importance — it guides the viewer's eye to see the most important information first 💡 Hierarchy guides the viewer's eye
🧩 Logic Reasoning
- What is deductive reasoning? ✅ B. Reasoning from general premises or rules to reach a specific, logically certain conclusion 💡 Deduction goes from general to specific with certainty
- All squares are rectangles. Shape X is a square. What can you conclude with certainty? ✅ B. Shape X is definitely a rectangle 💡 A square is a type of rectangle
💭 Creative Imagination
- If you could design a super-intelligent AI, what core values and ethical principles would you program into it to ensure it benefits humanity? ✅ B. Core values might include: the preservation and flourishing of conscious beings, respect for autonomy and consent, fairness, humility, transparency, and alignment with human well-being 💡 AI alignment ensures it helps humanity
- What is the "Paperclip Maximizer" thought experiment, and what does it warn us about AI goal specification? ✅ B. A thought experiment by Nick Bostrom: an AI given the goal of 'maximize paperclip production' could, if sufficiently intelligent, convert all available matter — including Earth and humanity — into paperclips 💡 Mis-specified goals can lead to catastrophe
Grade 6 · Random 12 Questions
🌿 Natural Observation
- In a forest ecosystem, where does almost all of the energy originally come from? ✅ C. The Sun 💡 Plants capture sunlight through photosynthesis
- What happens to the amount of available energy as you move up a food chain from plants to top predators? ✅ C. It decreases at each level 💡 Only about 10% of energy passes to the next level
🔬 Science Inquiry
- A circuit has a 9-volt battery and a resistor of 3 ohms. What is the current flowing through the circuit? ✅ B. 3 amperes 💡 Ohm's Law: I = V ÷ R
- What happens to the current in a circuit if the resistance is doubled while the voltage stays the same? ✅ C. The current is halved 💡 I = V ÷ R: double R halves I
🏠 Life Practice
- What does the difference between a want and a need when making spending decisions? ✅ B. A need is essential for survival and well-being; a want is desirable but not essential 💡 Needs first, then wants
- You find a wallet with $100 and identification. No one is watching. What ethical principles are in tension? ✅ B. Honesty and respect for property rights vs. self-interest and the absence of consequences 💡 Honesty vs. self-interest in everyday ethics
🎨 Art Perception
- What is an art movement, and why do artists often group themselves into movements? ✅ B. A collective style or philosophy shared by a group of artists during a specific time period 💡 Art movements reflect shared ideas and reactions
- How did Cubism, pioneered by Pablo Picasso and Georges Braque, change the way artists represented objects? ✅ B. By breaking objects into geometric shapes and showing multiple viewpoints simultaneously 💡 Cubism shows multiple perspectives at once
🧩 Logic Reasoning
- What is a paradox? ✅ B. A statement, situation, or argument that seems to contradict itself or defy logic 💡 Paradoxes challenge our assumptions
- Consider the statement: "This sentence is false." What is paradoxical about it? ✅ B. If it is true, then it must be false; if it is false, then it must be true 💡 The liar paradox creates a logical loop
💭 Creative Imagination
- What is the Mathematical Universe Hypothesis, proposed by physicist Max Tegmark? ✅ B. The radical idea that our physical universe is not just described by mathematics but IS a mathematical structure 💡 Reality may be fundamentally mathematical
- If the universe is fundamentally mathematical, what does that suggest about creativity — are we discovering math or inventing it? ✅ B. Mathematicians are explorers, not inventors — they discover truths that exist independently, but the choice of which mathematics to explore involves creativity 💡 Math is discovered; creativity is in the exploration
Six dimensions, one hexagon
Each age band (7–8, 9–10, 11–12) includes 1,200 original questions — 200 per dimension, written for Western learners.
Science Detective
Experiments, forces, matter, and scientific thinking — curiosity with evidence.
Life Skills
Safety, health, friendship, digital citizenship — practical wisdom for everyday life.
Art Sense
Color, music, movement, and culture — creativity you can see and feel.
Logic Power
Patterns, puzzles, reasoning, and data — thinking clearly under pressure.
Creative Mind
Imagination, invention, and "what if" scenarios — ideas that stretch beyond the textbook.
What's inside each dimension
All 3 age bands: each band contains 1,200 original questions — 200 questions per dimension, written for Western learners. All six dimensions earn A++ quality across every age band. Content reflects the question bank available in the web practice tool and WeChat Mini Program.
Ages 7–8 All six A++
Beginner level — 200 questions per dimension (1,200 total). Questions use simple vocabulary, concrete examples, and everyday scenarios.
Nature Explorer200 questions · A++ · Covers: Animal homes & baby animals, common birds & insects, plants & flowers, weather & seasons, day & night sky, ocean creatures, farm animals, pets & pet care, forest & desert life, pond habitats, food from nature, animal sounds, tree types, fruit & vegetables, nature walks, clouds & rain, butterflies & bees, rocks in the garden, what animals eat, keeping a nature journal.
Science Detective200 questions · A++ · Covers: Sink or float, magnets, shadows & light, hot & cold, push & pull, sound & hearing, everyday materials, melting & freezing, mixing colors, simple machines, bubbles & soap, growing seeds, body parts, five senses, rocks & soil, measuring, water play, bouncing & rolling, building & testing, what scientists do.
Life Skills200 questions · A++ · Covers: Brushing teeth, washing hands, healthy snacks, sharing & taking turns, manners, putting toys away, road safety, asking for help, telling time, money basics, table manners, making the bed, dressing for weather, being kind, family routines, calling for help, stranger safety, tidying up, pet care, trying new foods.
Art Sense200 questions · A++ · Covers: Primary & secondary colors, shapes everywhere, lines that move, music fast & slow, loud & soft sounds, instruments, drawing faces, happy & sad music, patterns in nature, finger painting, making rhythms, telling stories with pictures, color mixing, dance & movement, textures, songs around the world, make-believe art, puppets & masks, building blocks, copying patterns.
Logic Power200 questions · A++ · Covers: What comes next, odd one out, matching pairs, counting groups, bigger & smaller, above & below, before & after, same & different, sorting by color, sorting by shape, ordering by size, simple mazes, find the shadow, which has more, number puzzles 1–20, position words, yes or no, follow the clues, complete the shape, what doesn't belong.
Creative Mind200 questions · A++ · Covers: If I could fly, my dream pet, magic crayon, building a fort, what clouds look like, inventing a toy, talking animals, my superhero power, candy house, if toys came alive, underwater adventure, robot helper, magic beans, a day as an animal, designing a playground, what if the sky changed color, invent a new ice cream, my secret hideout, animal mix-ups, dream machine.
Ages 9–10 All six A++
Intermediate level — 200 questions per dimension (1,200 total). Questions introduce abstract concepts, cause & effect, and real-world connections.
Nature Explorer200 questions · A++ · Covers: Animal adaptations, camouflage & mimicry, food chains, habitats & biomes, insect life cycles, bird migration, plant parts & functions, pollination, seeds & dispersal, weather forecasting, water cycle, rocks & minerals, fossils & dinosaurs, ocean zones, coral reefs, endangered species, nocturnal animals, symbiosis, composting & soil, constellations & stars.
Science Detective200 questions · A++ · Covers: States of matter, forces & motion, simple circuits, conductors & insulators, sound waves, light & reflection, air & pressure, chemical vs physical changes, acids & bases intro, body systems, plant growth experiments, buoyancy, gears & pulleys, thermal energy, static electricity, magnetism, dissolving & solutions, weathering & erosion, water filtration, scientific method.
Life Skills200 questions · A++ · Covers: Setting goals, managing screen time, healthy eating, bike safety, first aid basics, money & budgeting, teamwork, resolving conflicts, cooking simple meals, reading food labels, peer pressure, recycling & waste, volunteering, online safety, respecting differences, emergency preparedness, family chores, time management, public speaking, kindness & empathy.
Art Sense200 questions · A++ · Covers: Warm & cool colors, shading & perspective, rhythm & tempo, musical genres, famous artists, sculpture materials, dance styles, theater basics, photography tips, comic strips, origami & paper art, clay modeling, color emotions, landscape drawing, portrait basics, folk art traditions, digital art intro, music notation intro, art critique, designing a poster.
Logic Power200 questions · A++ · Covers: Number patterns, word problems, probability basics, logic grid puzzles, analogies, sequences & series, code breaking, scheduling puzzles, weighing puzzles, Venn diagrams, symmetry & reflection, map reading, data charts, sudoku intro, rebus puzzles, time & distance, ratio basics, function machines, algebraic thinking, strategy games.
Creative Mind200 questions · A++ · Covers: Time travel adventure, invent a new sport, design a treehouse, future city, space colony, super vehicle, eco-friendly invention, imaginary country, board game design, pet robot, underwater city, weather machine, dream job, if animals ruled, future transport, magical school, food of the future, reimagine a holiday, secret agent gadget, bridge to anywhere.
Ages 11–12 All six A++
Advanced level — 200 questions per dimension (1,200 total). Questions challenge critical thinking, systems reasoning, and ethical reflection.
Nature Explorer200 questions · A++ · Covers: Ecosystems & energy flow, biodiversity & conservation, genetics & traits, evolution & natural selection, climate & biomes, animal behavior, plant physiology, microbiology intro, geological processes, plate tectonics, atmosphere layers, ocean currents, invasive species, biomimicry, sustainable farming, renewable vs non-renewable, carbon cycle, taxonomy & classification, environmental policy, citizen science.
Science Detective200 questions · A++ · Covers: Periodic table intro, chemical reactions, forces & Newton's laws, electric circuits, waves & spectrum, cell structure, DNA basics, body systems advanced, optics & lenses, energy transformations, mechanical advantage, density & pressure, heat transfer, nuclear energy basics, robotics & sensors, coding logic, astronomy & space, forensic science, nanotechnology, scientific ethics.
Life Skills200 questions · A++ · Covers: Critical thinking, media literacy, financial literacy, mental health, digital citizenship, career exploration, debate & argument, leadership, civic responsibility, negotiation, study strategies, stress management, nutrition science, basic law & rights, entrepreneurship, cultural awareness, relationship skills, self-defense awareness, sustainability action, project planning.
Art Sense200 questions · A++ · Covers: Art movements & history, symbolism in art, music composition, film analysis, architecture appreciation, graphic design, photography composition, theater production, creative writing, art & technology, fashion design, installation art, sound art, mural painting, art as activism, animation principles, cultural heritage, art criticism, curatorial thinking, mixed media.
Logic Power200 questions · A++ · Covers: Deductive reasoning, inductive reasoning, paradoxes, propositional logic, game theory, statistics & probability, correlation vs causation, decision trees, algorithmic thinking, binary & boolean, recursive thinking, graph theory intro, mathematical proofs, cryptography, fallacy detection, set theory, optimization, ethical dilemmas, counterfactuals, meta-cognition.
Creative Mind200 questions · A++ · Covers: Utopian society, interstellar travel, consciousness transfer, future of education, post-scarcity world, AI & humanity, genetic engineering ethics, terraforming planets, memory technology, universal language, underwater civilization, energy breakthrough, aging & longevity, planetary defense, augmented reality future, human-robot coexistence, space economy, digital consciousness, inter-species communication, multiverse exploration.
How it works
1 · Choose an age band
Pick 7–8, 9–10, or 11–12 years. Questions match reading level and concept depth.
2 · Practice or assess
Practice browses the full bank with answers shown. Assessment runs 60 questions and builds your hexagon chart.
3 · Learn at your pace
Stuck on a question? Skip it and come back later. Curiosity beats cramming.
Get PolygonKid
Practice and assess right here in your browser, or download the Android app.
Frequently asked questions
What if many questions are too hard for my child?
That's expected! General knowledge questions cover a broad range — your child doesn't need to know everything. Encourage them to skip hard ones and explore what interests them. When they come back a grade or two higher, many questions will feel much easier.
What's the difference between Practice and Assessment?
Practice is for daily browsing: flip through questions, see answers, bookmark favorites — no pressure to finish a round. Assessment is a formal checkpoint: about 60 questions, then a hexagon ability chart is generated. Good for doing once every few days. Both share the same monthly question bank.
How do I download and install the Android app?
Tap the Download Android App button on this page to get the APK file. Open it to install — if you see an "Unknown sources" warning, enable "Install unknown apps" in your device settings and try again. An iOS version is in preparation; for now, iPhone users can use the website or WeChat Mini Program.
Do I need to create an account to use the app?
No — the app automatically assigns an anonymous account on first launch. You can start using it immediately, no phone number or email required. If you want to sync progress across devices (e.g. between your phone and WeChat), you can link a WeChat account or phone number in the Profile page.
Are the questions the same as the printable PDFs?
Yes — same question bank, same monthly batch. The PDFs are great for printing and offline use; the app and mini program add interactive practice, bookmarking, assessment, and progress tracking.
How often is the question bank updated?
About one-sixth of the questions are refreshed each month. Make sure you're connected to the internet and switch age bands in the app to trigger a re-download. The app will also prompt you when a new monthly batch is available.