Measuring Matter Unit 2

Match the following

• Mass

• Matter cannot be created or destroyed

• Volume

• How strongly something is pulled on by gravity

• Density

• How much space matter occupies

• Conservation of Mass

• The amount of a substance

• weight

• How much mass is in a particular volume

Tags

NGSS.MS-PS1-5

NGSS.MS-PS2-4

Match the following

• Spring Scale

• A material that is denser than lead

• Gold

• Only common material to become less dense when frozen

• Balance

• Used to measure mass

• Water

• The ability for one substance to float in another

• Buoyancy

• Used to measure weight

Explain how the water you drink today could be the same water a dinosaur drank thousands of years ago.

Answer explanation

Water is recycled. After a dinosaur drank water, it exhaled some water into the atmosphere. That water has been recycled through the water cycle for thousands of years.

Tags

NGSS.MS-ESS2-4

Explain what happens to nitrogen in the soil and in plants that demonstrates conservation of mass.

Answer explanation

Nitrogen is absorbed by plants, eaten by animals, then returned to the soil when the plant or animal dies. It does not get used up.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

If an object floats in one liquid but sinks in another, what does that tell you about the densities of the two liquids?

Answer explanation

The first liquid is denser than the second.

How would you determine the volume of a toy car?

Answer explanation

Displacement method

How are buoyancy and density related?

Answer explanation

One substance is buoyant in another if it is less dense than the other substance. (less dense = more buoyant)

What are two units for measuring mass?

Answer explanation

grams and slug

What are two units for measuring weight?

Answer explanation

Newtons and punds

If you perform an experiment and the mass of the resulting substance is less than the mass of what you started with, what is one likely explanation?

Answer explanation

It is likely that a gas was produced and escaped from the experiment. A nuclear reaction converts a small amout of mass into energy.

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2