Easy Science Trivia

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Let’s embark on a journey into the world of Science with these easy and fun science trivia questions and answers. This is a fantastic way to spark curiosity whilst having a good time.

These easy science quiz questions are perfect for kids and they come with answers too making it a quick and easy way to start learning about our world.

Easy Science Trivia Questions and Answers

science icons

1. Question: What’s the largest planet in our solar system? Answer: Jupiter! It’s so big that all the other planets combined would still be smaller than this mighty giant.

2. Question: Why do we yawn? Answer: Scientists aren’t 100% sure, but some say it helps our brains wake up and get more oxygen. So, next time you catch a yawn, know that your brain is just stretching and saying, “Good morning!”

3. Question: What makes the sky blue? Answer: It’s like magic! Sunlight is made up of different colors, and the blue ones scatter more, creating that beautiful blue sky we see during the day.

4. Question: How fast does a sneeze travel? Answer: Hold onto your hats – a sneeze can zoom at a whopping 100 miles per hour! Gesundheit!

5. Question: What do plants need to grow? Answer: Plants need sunlight, water, and soil to grow big and strong. It’s like their own little recipe for a healthy life!

6. Question: Why does it rain? Answer: Rain happens when water droplets in the clouds get heavy and fall to the ground. It’s like the clouds are giving the Earth a refreshing drink.

7. Question: What makes the moon shine at night? Answer: The moon doesn’t make its own light. It reflects the sunlight, so when the sun sets, the moon appears to glow in the night sky.

8. Question: Why does a boat float, but a rock sinks? Answer: It’s all about density! A boat is designed to be less dense than water, so it stays afloat. Rocks, on the other hand, are denser than water, so they sink.

9. Question: How does a rainbow form? Answer: Rainbows appear when sunlight is refracted (bent) by raindrops in the air. Each raindrop acts like a tiny prism, splitting the light into different colors and creating a beautiful rainbow.

10. Question: What makes a magnet stick to some things? Answer: Magnets have a special force that attracts certain metals like iron. It’s like magic, but it’s really the invisible power of magnetism!

11. Question: Why do we see lightning before we hear thunder during a storm? Answer: Lightning is a flash of light, and light travels faster than sound. That’s why we see the lightning first and then hear the thunder a bit later.

12. Question: How many fingers do you have on one hand? Answer: Trick question, you have 4 fingers and 1 thumb

13. Question: What’s the fizz in soda made of? Answer: The fizz in soda comes from carbon dioxide gas. It’s like a billion tiny bubbles having a party in your drink!

14. Question: Why does popcorn pop? Answer: Popcorn pops because each kernel has a little bit of water inside. When it gets heated, the water turns into steam, and the kernel pops open.

15. Question: What happens when you mix baking soda and vinegar? Answer: It’s a bubbly explosion! Baking soda and vinegar react to produce carbon dioxide gas, making lots of fizz and bubbles.

kids volcano science experiment

16. Question: Why do bananas turn brown? Answer: Bananas turn brown because of a chemical reaction between enzymes and oxygen. It’s like a banana saying, “I’m ripe and ready to eat!”

17. Question: How does a glow stick glow? Answer: Inside a glow stick, there’s a chemical reaction between two substances that creates light. It’s like a mini chemical light show!

18. Question: Why does iron rust? Answer: Iron rusts when it reacts with oxygen in the air and water.

19. Question: What makes lemons sour? Answer: Lemons are sour because of citric acid. It’s the same stuff that gives them that zesty, tangy flavor.

20. Question: What happens when you mix oil and water? Answer: They don’t mix! Oil and water don’t get along because water is polar, and oil is nonpolar. It’s like trying to mix cats and dogs—they prefer to stay separate.

21. Question: Why does a ball fall when you drop it? Answer: The ball falls because of gravity, a force that pulls things toward the center of the Earth.

22. Question: Why does a balloon stick to a wall and make your hair stand up after you rub it on your hair? Answer: Rubbing the balloon on your hair gives it a negative charge. The negatively charged balloon sticks to the positively charged wall, showing off some static electricity magic!

static electricity

23. Question: What makes a seesaw go up and down? Answer: It’s all about balance! When one person goes down, the other goes up because of the pivot point in the middle. It’s like a physics teeter-totter.

24. Question: How does a flashlight work? Answer: A flashlight works by converting electrical energy into light. When you turn it on, the electricity flows through a special wire, making the light bulb glow.

25. Question: Why does a feather fall slower than a rock? Answer: It’s all about air resistance! The feather has more surface area, so air slows it down as it falls. The rock, being denser, falls faster through the air.

26. Question: How does a kite stay up in the sky? Answer: Kites stay up because of the balance between the lift from the wind and the force of gravity pulling it down. It’s like a dance with the wind!

27. Question: Why does a paper airplane glide through the air? Answer: The shape of the paper airplane creates lift and reduces air resistance, helping it glide. It’s a mini physics lesson every time you fold and throw!

28. Question: How many planets are there in our solar system? Answer: There are eight planets in our solar system, and Earth is one of them. We’re like part of the cosmic team!

29. Question: What is the process plants use to make their own food? Answer: Photosynthesis! Plants use sunlight, water, and carbon dioxide to make their own food and release oxygen. They’re like little chefs in the garden.

30. Question: What’s the largest ocean on Earth? Answer: The Pacific Ocean! It’s so vast that it’s like the big, blue hug around a quarter of our planet.

map showing the pacific ocean

31. Question: Why does the Moon change its shape in the sky? Answer: The Moon changes shape because of its position relative to the Sun. We see different parts of the lit-up side, creating the phases we observe.

32. Question: What gas do we breathe in and need to survive? Answer: Oxygen! It’s like the invisible superhero that keeps us alive and helps our bodies work.

33. Question: What do you call the process of water turning into vapor? Answer: It’s called evaporation! When water gets warm, it turns into vapor and floats up into the air.

34. Question: How does sound travel? Answer: Sound travels in waves! It needs a medium, like air, water, or solids, to carry the vibrations and reach our ears.

35. Question: What is the smallest bone in the human body? Answer: The stapes bone in the middle ear! It’s like a tiny stirrup, helping us hear the sounds around us.

36. Question: What gives the sky its color during a sunrise or sunset? Answer: The scattering of sunlight! It creates the beautiful hues of red, orange, pink, and purple in the sky.

37. Question: Why do we have seasons on Earth? Answer: Seasons happen because of the tilt of the Earth’s axis. It’s like our planet doing a little cosmic wobble as it orbits the Sun.

38. Question: What is the largest mammal on Earth? Answer: The blue whale! It’s like a giant ocean explorer, and its heart is as big as a small car.

39. Question: What is the Earth’s outer layer called? Answer: The crust! It’s like the crunchy outer shell of our planetary home.

40. Question: How many bones are in the adult human body? Answer: Adults have 206 bones! It’s like having a whole set of building blocks inside us.

41 Question: How many colors are in a rainbow? Answer: There are 7 beautiful colors, red, orange, yellow, green, blue, indigo, violet.

42 What is it called when animals have a long sleep during the winter? Answer: Hibernation

43, Which season comes before Winter? Answer: Fall

44. Which mammals lay eggs? Answer: Platypus and Echidnas

45. Which is lighter, hot air or cold air? Answer: Hot air

Science True or False Questions

True or false sign

True or False: Water boils at 100 degrees Celsius (212 degrees Fahrenheit) at sea level.

  • Answer: True

True or False: The sun rises in the west and sets in the east.

  • Answer: False

True or False: Penguins can fly.

  • Answer: False

True or False: Lightning never strikes the same place twice.

  • Answer: False

True or False: The human body has four lungs.

  • Answer: False

True or False: The Great Wall of China is visible from space with the naked eye.

  • Answer: False

True or False: Plants get their energy from the soil.

  • Answer: False

True or False: The moon has its own light.

  • Answer: False
The moon

True or False: Sound travels faster in water than in air.

Answer: True

True or False: All insects have six legs.

Answer: True

True or False: A group of whales is called a pod.

Answer: True

True or False: Oxygen is the most abundant gas in the Earth’s atmosphere.

Answer: False

True or False: The Earth’s core is primarily made of iron and nickel.

Answer: True

True or False: Light travels faster than sound.

Answer: True

True or False: The sun is a planet.

Answer: False

True or False: Goldfish have a three-second memory span.

Answer: False


True or False: All snowflakes have a unique shape.

Answer: True

True or False: Cheetahs are the fastest land animals.

Answer: True

True or False: Honey never spoils.

Answer: True

True or False: Antarctica is the driest continent on Earth.

Answer: True


I hope you enjoyed these super easy Science Questions and Answers and learnt something new. Learning new things and discovering the amazing things that make our world tick is so rewarding.

So, keep the excitement alive, ask more questions, and let your curiosity bloom.

If you are looking for more trivia questions and answers, try these ones.

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