Chemical Reactions Review

What is an element?

• A material made by chemically altering natural materials

• A pure substance consisting of one type of atom

• The smallest unit of matter

• Formed when two or more atoms bond together

What is a synthetic material

• A material made by altering natural materials

• A material made by chemically altering natural materials

Tags

NGSS.MS-PS1-3

What is a natural material

• A material made by altering natural materials

• A material made by chemically altering natural materials

This is a picture of a(n)

• Atom

• Molecule

Tags

NGSS.MS-PS1-1

This is a picture of a(n)

• atom

• molecule

Tags

NGSS.MS-PS1-1

A chemical reaction is:

• When the atoms in a substance rearrange to form a new substance

• Formed when two or more atoms bond together

• A pure substance consisting of one type of atom

• A material made by chemically altering natural materials

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A physical reaction is:

• When the atoms in a substance rearrange to form a new substance

• Formed when two or more atoms bond together

• When a substance is changed but the atoms are NOT rearranged.

• A material made by chemically altering natural materials

Tags

NGSS.MS-PS1-4

Matter can be neither...

• destroyed but it can change form.

• created nor destroyed.

• created nor destroyed. It just changes form.

• created.

Tags

NGSS.MS-PS1-5

True or False: atoms are conserved in photosynthesis

• True

• False

Tags

NGSS.MS-LS2-3

NGSS.MS-PS1-5

True or False: atoms are NOT conserved in the water cycle

• True

• False

Tags

NGSS.MS-PS1-5