Conservation of Matter

When two or more pieces of matter are mixed together

but can be easily separated, it is a

• molecule

• solid

• mixture

• solution

Anything that has weight and takes up space is

When two or more pieces of matter are combined

but NOT easily separated, it is a

• solution

• mixture

• mass

• liquid

The conservation of matter states that

• all matter is made up of particles

• the amount of matter changes in a closed system.

• matter has weight and takes up space.

• the amount of matter stays the same in a closed system.

Tags

NGSS.MS-PS1-5

A molecule is

• made up of 2 or more atoms.

• does not exist.

• made up of exactly one atom.

• found only

  in gases

Tags

NGSS.MS-PS1-1

When 25ml of sugar dissolves in 150ml of water,

what is the new weight of the solution?

• 175ml

• 100ml

• 125ml

• 25ml

Tags

NGSS.MS-PS1-2

What makes up an atom?

• proton

• neutron

• electron

• all three

Tags

NGSS.MS-PS1-1

An oreo cookie has a mass of 20 grams. It gets crushed into crumbs for a recipe.

What is the mass of the crumbs?

• 15 grams

• 25 grams

• 20 grams

When ice melts, the water has the same_____ as the ice.

• temperature

• mass

• state of matter

• shape

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

If each letter cube has a mass of 3 grams, what is the total mass

of the cubes that spell out "cage"?

• 9 grams

• 20 grams

• 12 grams

• 3 grams