Conservation of matter

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

Tags

NGSS.5-PS1-2

Matter is anything that ---

• takes up space and has mass.

• is in our universe.

• is light, sound or ideas.

Tags

NGSS.5-PS1-3

The Law of Conservation of Matter states that the total amount of matter _____ after it undergoes change.

• disappears

• stays the same

• weighs less

• explodes

Tags

NGSS.5-PS1-2

Matter must have weight and _________.

• be visible
• take up space
• be a solid
• all of these

Tags

NGSS.5-PS1-1

NGSS.5-PS1-3

If 25 grams of sugar dissolves into 150 grams of water, what is the new weight of the liquid?

• 125 g
• 150 g
• 25 g
• 175 g

Tags

NGSS.5-PS1-2

What evidence was found for conservation of matter in the fire snake demo?

• looked the same before and after
• about the same weight before and after
• smelled the same before and after
• matter was not conserved

Tags

NGSS.5-PS1-2

The fire snake weighed slightly less after it burned. Where did that matter go?

• disappeared
• burned up
• escaped as gas
• soaked into sand

Tags

NGSS.5-PS1-2

Why does the weight of the dry ice go down while it's sitting on the scale?

• it's melting
• it's disappearing
• turning into a gas
• none of these

Tags

NGSS.5-PS1-2

As the balloon collects gas, what happens to the weight reading on the scale?

• increases
• decreases
• stays the same
• goes to zero

Tags

NGSS.5-PS1-2

As this candle burns it gets shorter. Where does the wax go?

• wax goes into the air
• disappears
• melts into the candle
• burns and releases gases into the air

Tags

NGSS.5-PS1-2