The _______ of a substance is the amount of that substance that can dissolve in a certain amount of a given solvent.

• Chemical reactivity

• Density

• Boiling Point

• Solubility

• I don't know

When Jenny puts a stick of butter in the microwave, the butter melts. Which of the following is/are true about the change that occurs when the butter melts?

1. It is a physical change.

2. It makes a new substance.

3. It is a chemical change.

• Both 1 and 2

• 1 only

• 2 only

• Both 2 and 3

• I don't know

Tags

NGSS.MS-PS1-2

Federico has two samples of pure water—sample X and sample Y.

Sample X has a volume of 1 L, and sample Y has a volume of 10 L.

How do the boiling points of these two samples compare?

• Sample Y will boil at a lower temperature because it has more volume.

• Sample X will boil at a lower temperature because it has less volume.

• Whichever sample receives heat first will have a lower boiling point.

• Sample X and Sample Y will boil at the same temperature.

• I don't know.

Tags

NGSS.MS-PS1-4

What is the smallest particle of an element that still has the same chemical properties?

• Mixture

• Molecule

• Atom

• Compound

• I don't know.

Most substances dissolve ...

• at a constant rate regardless of heat transfer.

• more quickly when heat is added to them.

• more quickly as heat is removed from them.

• at the same rate as all other substances.

• I don't know.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What must occur in order for matter to change states?

• Heat must be added or removed.

• A chemical change must occur.

• The temperature must change

• Other substances must be added.

• I don't know.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following is true about density and states of matter for most substances?

• A substance is denser as a gas than as a solid.

• A substance is denser as a solid than as a gas.

• A substance is denser as a gas than as a liquid.

• A substance is denser as a liquid than as a solid

• I don't know.

Tags

NGSS.MS-PS1-4

Which of the following is true about elements?

• Elements do not combine to form compounds.

• Elements combine to form compounds in organisms and nonliving substances.

• Elements combine to form compounds in organisms but not in non-living substances.

• None of these.

• I don't know

Tags

NGSS.MS-PS1-5

A 10 gram sample of butter will melt at a temperature that is _____ the melting point of a 5 gram sample of butter.

• double

• less than

• triple

• equal to

• I don't know

Tags

NGSS.MS-PS1-4

What is all matter made up of?

• Atoms

• Cells

• Carbon

• Metal

• I don't know.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5