HW -Conservation of matter

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

• disappears

• stays the same

• weighs less

• explodes

An oreo cookie weighs 20 grams. It gets crushed into crumbs for a recipe. How much do its crumbs weigh?

• 15 grams

• 25 grams

• 20 grams

Which picture below would correctly demonstrate the Law of Conservation of Matter if this picture is the reactants?

• 
• 
• 
• 

Matter can not be created nor destroyed: it can only be

• Destroyed a little bit

• Invisible

• Transformed, changed

• None of the above

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

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

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

Where did Zoe's flash paper go when it disappeared?

• converted to gas
• converted into pure energy
• into the candle
• she hid it in her hand

Tags

NGSS.4-PS3-2

If there are 4 H atoms on the reactant side, how many H atoms will be on the product side? 

• 2
• 4
• 6
• You need more information to answer this question

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-1

Which of the following is NOT part of the Law of Conservation of Matter?

• Matter cannot be created or destroyed

• Matter can be rearranged

• Fire converts matter to heat

• Matter can change phase; go from a solid to a liquid to a gas

Tags

NGSS.MS-PS1-5