15 Fun Facts About Science Trivia for Kids

Which planet is known as the Red Planet?

Mars looks orange-red from Earth because its surface is covered in iron oxide, which is the same rusty stuff you see on an old nail left out in the rain.

Which is the largest planet in our Solar System?

Jupiter is the fifth planet out from the Sun and bigger than all the other planets put together. Its famous Great Red Spot is a storm wider than Earth.

Which planet orbits closest to the Sun?

Mercury is the first planet out from the Sun and also the smallest planet in the Solar System.

What kind of object is the Sun?

The Sun is an ordinary star that happens to sit right at the centre of our Solar System. It only looks so big and bright because it is far closer to us than any other star.

Which gas do plants take in from the air to make their food?

In photosynthesis a plant uses sunlight to turn carbon dioxide and water into sugar, and it gives off oxygen as a leftover.

At what temperature does water freeze?

At normal air pressure water turns to ice at 0 degrees Celsius, which is 32 degrees Fahrenheit. It boils at 100 degrees Celsius.

What is the chemical formula for water?

Every drop of water is made of tiny molecules with two hydrogen atoms joined to one oxygen atom.

How many bones are in a grown-up person's body?

A baby is born with around 270 bones, and some of them join together as the child grows, leaving about 206 by adulthood.

Who was the first person to walk on the Moon?

He stepped onto the surface on 20 July 1969 as commander of Apollo 11. Buzz Aldrin followed him out minutes later and became the second person to walk there.

Which is the largest organ in the human body?

Your skin covers you from head to toe and makes up roughly a sixth of your whole body weight.

Which force pulls a dropped ball down toward the ground?

Gravity draws objects with mass toward each other, and it is what gives everything on Earth its weight.

Which part of a plant takes in water from the soil?

Tiny root hairs soak up water and dissolved minerals underground, and tubes inside the plant carry them up to the rest of it.

Which gas makes up most of the air we breathe?

Nitrogen is about 78 percent of dry air. Oxygen, the part our bodies actually use, is only about 21 percent.

What do we call an animal that eats only plants?

A herbivore lives mainly on leaves, fruit and seeds. Cows, rabbits and giraffes are all herbivores.

Which natural material is the hardest of all?

Diamond sits at the very top of the Mohs hardness scale, so it can scratch every other natural material but almost nothing can scratch it.