9th grade science review

What is the main purpose of science?

• To answer questions about the natural world.

• To create art and music.

• To build tall buildings.

• To make laws for the country.

How does science answer questions about the natural world?

• By using data gathered from experiments.

• By guessing the answers.

• By reading storybooks.

• By asking friends.

Tags

NGSS.MS-LS1-1

NGSS.MS-PS1-2

What does "habitable" mean?

• It is a place to be livable and organisms can survive there.

• It is a place where only plants can grow.

• It is a place that is always cold.

• It is a place where no organisms can live.

Tags

NGSS.MS-ESS2-4

What are the three different subatomic particles?

• Proton, neutron, electron

• Atom, molecule, cell

• Proton, atom, molecule

• Electron, molecule, cell

Which subatomic particle has a positive charge?

• Electron

• Neutron

• Proton

• Atom

Where is the electron located in an atom?

• Nucleus (center)

• Outside the nucleus

• Inside the nucleus

• In the proton

What is the charge of a neutron?

• Positive

• Negative

• No charge

• Double charge

Which subatomic particle is found in the nucleus (center) of an atom and has no charge?

• Electron

• Proton

• Neutron

• Atom

Which subatomic particle has a negative charge?

• Proton

• Neutron

• Electron

• Nucleus

What is the main difference between hydrogen and helium?

• Hydrogen has two protons and helium has one proton.

• Hydrogen has one proton and helium has two protons.

• Both hydrogen and helium have one proton.

• Both hydrogen and helium have two protons.

Tags

NGSS.MS-PS1-1