Conservation of mass

Measure of the amount of matter 

• mass
• volume
• weight
• density

Tags

NGSS.5-PS1-2

Anything that has mass & takes up space

• gravity
• force
• matter
• volume

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NGSS.MS-PS1-1

Smallest unit of an element

• compound
• atom
• molecule
• product

Tags

NGSS.MS-PS1-1

A 55-gram egg is placed in a pot. After the egg is boiled, which is most likely the mass of the egg?

• 50 
• 55 

Tags

NGSS.MS-PS1-4

Jason poured 500 grams of water into a container and tightly sealed it. The water was allowed to freeze. Which is most likely true about the ice that formed?

• The mass of the ice is the same as the mass of the water.
• The mass of the ice is greater than the mass of the water.
• The ice formed is a different substance than the water.
• The ice formed is the same temperature as the water.
  

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-4

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

• Destroyed a little bit
• Invisible
• Transformed, changed
• None of the above

Tags

NGSS.MS-PS1-5

Which of these is not a chemical reaction?

• Burning of wood
• Milk going bad
• Mixing vinegar and baking soda
• Melting of ice

Tags

NGSS.MS-PS1-2

The Law of Conservation of Mass States

• Energy cannot be created nor destroyed, it can only change form.

• Mass cannot be created nor destroyed, it can only change form.

• Mass can be created or destroyed, it cannot change form.

Tags

NGSS.MS-PS1-5

Anthony is performing an experiment. He adds 0.25 grams of baking soda to 5 grams of water and stirs. Anthony watches as the baking soda dissolves in the water. If Anthony weighs the water and baking soda solution, what will its mass be?

• 4.75 grams
• 5.0 grams
• 5.25 grams
• 7.5 grams

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

If a physical change occurs...

• A new substance has been formed

• The substance is the same, but looks different