Substances and matter
Physics
Living systems
Earth and space
Just for fun
100

What is the chemical formula for water?

H2O

100

This form of energy powers lights, TVs, and computers.

Electricity

100

Which organ system controls your breathing?

Respiratory System

100

What causes day and night on Earth?

Earth’s rotation

100

What is the name of the snowman in Frozen?

Olaf

200
A long chain of molecules is called… 

(hint: slime)

A polymer

200

What force pulls everything toward the center of the Earth?

Gravity

200

What part of a plant transports water from the ground to the leaves?

The stem 

200

What is the name of the path a planet takes around the sun?

Orbit

200

What is the tallest land animal in the world?

Giraffe

300

What are the different signs of a chemical reaction happening? (name at least 2)

Gas formation, colour change, precipitate (a new solid made from 2 liquids), temperature change, light

300

What three things are needed for fire to burn?

Heat, fuel and oxygen

300

These tiny structures are the building blocks of all living things.

Cells

300

This is the name of a group of stars that form a picture.

Constellation

300

Which bird can fly backwards?

A hummingbird

400

One single molecule of an element is called…

An atom

400

What do we call the bending of light when it passes through water or glass?

Refraction

400

Animals that change their body temperature based on the environment are called…

Cold-blooded animals

400

What is the term for when the moon completely blocks the sun’s light from Earth?

Total solar eclipse

400
Which number is represented by the roman numeral ‘X’?

10

500

What is the name of the process where a solid changes directly into a gas?

Sublimation

500

Which law states that an object at rest stays at rest unless acted on by a force?

Newton’s First Law of Motion

500

A special pigment in plants that help absorb sunlight during photosynthesis, and gives leaves their green colour.

Chlorophyll

500

Which planet rotates on its side, with its axis almost parallel to its orbit?

Uranus

500

You see me once in June, twice in November but not at all in May. What am I?

The letter ‘e’

M
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