P.5.5A-B Review

A ________ may remove metal objects from other substances.

• filter

• magnet

• sifter/strainer

Rocks and sand are separated by a _________ .

• filter

• water

• magnet

• sifter/strainer

Sometimes, ________ is added to a mixture of salt, pepper, and sand.

• water

• a magnet

• a filter

When salt is added to water, the salt will ________ .

• settle

• float

• dissolve

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

When water is added to the mixture, the sand ________ .

• floats

• settles

• dissolves

When water is added to the mixture, the pepper _________ .

• floats

• settles

• dissolves

__________ are used to separate water and sand.

• filters

• sifters

• magnets

__________ is the only way to separate dissolved particles such as water and salt.

• settling

• flotation

• evaporation

Two or more atoms chemically bonded together are called a

• molecule

• atom

• mixture

• element

Tags

NGSS.MS-PS1-1

How many carbon atoms are there in a methane molecule?

• 0

• 4

• 5

• 1

Tags

NGSS.MS-PS1-1