Question 1

All matter is made of......

Accepted Answer

atoms

Answer

oxygen

Answer

compounds

Answer

cells

Question 2

A substance with parts that can be easily separated by physical means is classified as a(n)....

Accepted Answer

mixture

Answer

molecule

Answer

element

Answer

compound

Question 3

Two hydrogen atoms and one oxygen atom combine to form a(n) _

Accepted Answer

molecule

Answer

element

Answer

isotope

Answer

atom

Question 4

Which picture(s) shows a compound?

Accepted Answer

A only

Answer

B & D

Answer

D only

Answer

A & B

Question 5

Which picture(s) show an element?

Accepted Answer

C & D

Answer

D only

Answer

B only

Answer

C only

Question 6

Which picture(s) show a mixture?

Accepted Answer

B only

Answer

A & D

Answer

A & B

Answer

A

Question 7

Which is NOT an example of a chemical change (it's a physical change!)?

Accepted Answer

glass breaking

Answer

precipitate

Answer

vinegar & baking soda bubbling

Answer

rusty bike

Question 8

Which is NOT an indication of a physical change (it's a chemical change!)?

Accepted Answer

an odor is smelled

Answer

cutting the grass

Answer

condensation

Answer

melting

Question 9

This is NOT an example of condensation.....

Accepted Answer

melted ice cube

Answer

a cold pepsi can "sweats"

Answer

clouds

Answer

a foggy mirror after a shower

Question 10

A substance that shows individual parts with unique properties is known as a(n)......

Accepted Answer

mixture

Answer

element

Answer

compound

Answer

molecule

Question 11

Which is a physical property of matter?

Accepted Answer

density

Answer

reactivity

Answer

a broken cup

Answer

flammability

Question 12

Which two are chemical properties of matter?

Accepted Answer

reactivity & flammability

Answer

mass & texture

Answer

solubility & malleability

Answer

thermal & electrical conductivity

Question 13

Examples of a mixture......

Accepted Answer

rice krispie treat

Answer

a diamond (carbon)

Answer

salt

Answer

water

Question 14

Which physical properties would remain the same no matter how much matter is present?

Accepted Answer

melting point & density

Answer

malleability & mass

Answer

volume & solubility

Answer

mass & volume

Question 15

When the temperature increase, the speed of the atoms ____________.

Accepted Answer

increases

Answer

goes to 0 mph

Answer

stays the same

Answer

decreases

Question 16

Something in the gas state has a ......

Accepted Answer

indefinite shape, indefinite volume

Answer

none of the above

Answer

definite shape, definite volume

Answer

indefinite shape, definite volume

Question 17

A state of matter with particles really close together is known as........

Accepted Answer

solid

Answer

gas

Answer

plasma

Answer

liquid

Question 18

The equation for density is......

Accepted Answer

mass/volume

Answer

mass/density

Answer

mass x volume

Answer

volume/mass

Question 19

An object has a mass of 4 grams and a volume of 8 cm3.  What is the density?

Accepted Answer

0.5 g/cm3

Answer

.5 cm3

Answer

2 g/cm3

Answer

32 g

Question 20

An object has a density of 5.3 g/cm3.  You find the density of a similar object, and the density is 5.0 g/cm3.  Do you have 2 of the same objects?

Accepted Answer

No, definitely not.

Answer

not enough info to tell

Answer

Maybe

Answer

Yes, definitely.

Question 21

Which act would change a piece of wood into another substance?

Accepted Answer

burn it

Answer

use a chainsaw to carve a figure out of the wood

Answer

cut it in half

Answer

sand it for a smoother texture

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