Early HPS Practice

What do we call the first chapter of the year?

• COM

• ABC

• BYOD

• HELLO

• CHEM

If you look at a substance, you can always immediately tell whether it's a mixture by its appearance.

• true

• false

If a substance is a single color, it

• might be a pure substance

• must be a pure substance

All properties of a substance can be observed with your five senses.

• true

• false

Tags

NGSS.5-PS1-3

Each square on the Periodic Table represents a different, unique kind of ____________

• atom

• molecule

• ion

• isotope

Tags

NGSS.MS-PS1-1

A collection of identical atoms is called a(n)

• element

• molecule

• mixture

A collection of identical molecules is called a(n)

• element

• compound

• mixture

Tags

NGSS.MS-PS1-1

In this model, what does it mean that the squares and the circles are touching each other?

• the atoms have bonded

• the atoms have fused

• the molecules have bonded

• the molecules have fused

Tags

NGSS.MS-PS1-1

What is this model representing?

• a collection of identical atoms

• a collection of identical molecules

Tags

NGSS.MS-PS1-1

What is this model representing?

• an element

• a compound

• a mixture

Tags

NGSS.MS-PS1-1