Grade 6 Science Diagnostic Exam

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1 / 20

The force that pulls all objects towards the center of the Earth is called:

Gravity

Magnetism

Friction

Air resistance

2 / 20

Which of the following is an example of a chemical change?

Paper burning

Ice melting

Water boiling

Cutting wood

3 / 20

What is the role of a decomposer in a food web?

To break down dead organisms and waste

To produce its own food

To eat plants

To eat other animals

4 / 20

What is the basic unit of all living organisms?

The Cell

The Tissue

The Organ

The Atom

5 / 20

Why does the Earth experience day and night?

Because the Earth rotates on its axis

Because the Earth revolves around the Sun

Because the Sun rises and sets

Because the Moon orbits the Earth

6 / 20

What is the function of the stomach in the digestive system?

To pump blood

To break down food using acid and enzymes

To absorb water and minerals

To chew food

7 / 20

Which of the following is a renewable energy source?

Natural gas

Coal

Solar power

Oil

8 / 20

Which of the following is a producer in a food chain?

A cactus

A lion

A rabbit

A snake

9 / 20

What is the name of the system in the human body that allows us to breathe?

The Respiratory System

The Muscular System

The Nervous System

The Skeletal System

10 / 20

What is the process called when a liquid changes to a gas?

Melting

Evaporation

Freezing

Condensation

11 / 20

Which of the following is the largest planet in our solar system?

Saturn

Mars

Earth

Jupiter

12 / 20

When you shine a flashlight on a wall, what is the path of the light called?

A shadow

A ray

A beam

A wave

13 / 20

Which of these objects would have the most gravitational force acting on it?

A feather

A bowling ball

A paperclip

A soccer ball

14 / 20

What is the main function of the heart in the human body?

To break down food

To pump blood throughout the body

To produce hormones

To filter waste from the blood

15 / 20

What is the main difference between a mixture and a compound?

A mixture can be separated by physical means, while a compound requires chemical means.

A mixture can only be made of two substances, while a compound can be made of many.

A mixture's components are chemically bonded, while a compound's are not.

A mixture has a fixed ratio of components, while a compound does not.

16 / 20

What happens to the particles of a substance when it changes from a solid to a liquid?

The particles gain energy and move more freely.

The particles get closer together.

The particles stop moving.

The particles lose energy.

17 / 20

What is the name of the path the Earth follows as it moves around the Sun?

Axis

Revolution

Equator

Orbit

18 / 20

Which of the following parts of a plant is responsible for absorbing water and nutrients from the soil?

The flowers

The leaves

The roots

The stem

19 / 20

A substance that dissolves in another substance to form a solution is called the:

Solvent

Solution

Mixture

Solute

20 / 20

The main source of energy for most ecosystems on Earth is:

The Sun

Water

Volcanoes

Wind

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Grade 6 Science Diagnostic Exam

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