Quiz about 7th grade science review

Question 1

Which liquid is the least dense?

Accepted Answer

oil

Answer

water

Answer

syrup

Answer

plastic bottle

Question 2

The process of a LIQUID turning into a GAS is called?

Accepted Answer

Evaporation

Answer

Boiling

Answer

Steam

Answer

Sublimation

Question 3

Mixtures _________ combined chemically.

Accepted Answer

ARE NOT

Answer

ARE

Question 4

The processes of a solid turning directly into a gas is.....

Accepted Answer

Sublimation

Answer

boiling

Answer

melting

Answer

evaporation

Question 5

Density is mass divided by volume.

Accepted Answer

True

Answer

False

Question 6

The picture is an example of _______________.

Accepted Answer

Heterogeneous Mixture

Answer

Pure Substance

Answer

Homogeneous Mixture

Answer

Compound

Question 7

Where should you read the level of water on the graduated cylinder?

Accepted Answer

Level "A"

Answer

Level "B"

Answer

Level "C"

Answer

None of these

Question 8

What is the volume of water in this graduated cylinder?

Accepted Answer

47 mL

Answer

50 mL

Answer

45 mL

Answer

45.4 mL

Question 9

The parts of the experiment that must be kept the same.

Accepted Answer

Constants

Answer

independent

Answer

Dependent

Question 10

The variable that is changed on purpose during an experiment is called the.....

Accepted Answer

Independent Variable

Answer

Constant

Answer

Control

Answer

Dependent Variable

Question 11

If I water the plant more often, then it will grow taller.  Name the dependent variable.

Accepted Answer

The height of the plant.

Answer

The amount of water.

Answer

The amount of soil.

Answer

The amount of water.

Question 12

If I water the plant more often, then it will grow taller.  Name the independent variable.

Accepted Answer

The amount of water

Answer

The height of the plant

Answer

The size of the pot

Answer

The amount of light.

Question 13

The majority of the periodic table is composed of...

Accepted Answer

metals

Answer

nonmetals

Answer

metaloids

Answer

halogens

Question 14

Check THREE physical properties of metals.

Accepted Answer

very dense

Accepted Answer

good conductors of electricity

Accepted Answer

ductile and malleable

Answer

low melting point

Question 15

In an exothermic reaction, heat is ...

Accepted Answer

given out

Answer

taken in

Question 16

In an endothermic reaction, heat is ...

Accepted Answer

taken in

Answer

given out

Question 17

This is an example of a

Accepted Answer

Mixture

Answer

Solution

Question 18

The substance that does the dissolving

Accepted Answer

Solvent

Answer

Solute

Answer

Solution

Answer

Miscibility

Question 19

The substance getting dissolved

Accepted Answer

Solute

Answer

Solvent

Answer

Solution

Answer

Mixture

Question 20

What are THREE examples of colloids?

Accepted Answer

fog

Accepted Answer

shaving cream

Accepted Answer

milk

Answer

trail mix

Question 21

In what type of mixture are the particles equally distributed throughout?

Accepted Answer

homogeneous solution

Answer

colloid

Answer

suspension

Answer

heterogeneous mixture

Question 22

What is a circuit?

Accepted Answer

A path that a current can flow along

Answer

A constant flow of electricity

Question 23

Why is electrical wiring usually made from copper?

Accepted Answer

Because copper conducts electricity

Answer

Because copper is shiny

Answer

Because copper is not magnetic

Answer

Because copper insulate electricity

Question 24

If lamp 2 is unscrewed from its holder, what will happen to lamp1?

Accepted Answer

It will stay lit

Answer

It will go out

Answer

It will get dimmer

Answer

It will dissapear

Question 25

What type of circuit is this?

Accepted Answer

Parallel Circuit

Answer

Open Circuit

Answer

Series Circuit

Question 26

What type of circuit is this?

Accepted Answer

Series Circuit

Answer

Parallel Circuit

Answer

Open Circuit

Question 27

Which of the following best describes temperature?

Accepted Answer

Motion of molecules

Answer

Number of molecules

Answer

Size of molecules

Answer

Type of molecules

Question 28

Warm air rises and the cool air sinks demonstrates this type of heat transfer.

Accepted Answer

convection

Answer

conduction

Answer

radiation

Answer

Insolation

Question 29

Transfer of thermal energy through "space"

Accepted Answer

radiation

Answer

conduction

Answer

convection

Question 30

Hot coffee is stirred with a spoon; the spoon gets hot due to

Accepted Answer

conduction

Answer

convection

Answer

radiation

Question 31

Near the ceiling of a room the air is warmer; the warm air rises because of

Accepted Answer

convection

Answer

conduction

Answer

radiation

Question 32

Which box has a higher density?

Accepted Answer

Box A

Answer

Box B

Answer

cannot be determined

Answer

they are the same

Question 33

What kind of energy is in a moving skateboard?

Accepted Answer

Kinetic

Answer

Potential

Answer

Both potential and kinetic energy

Answer

none of the above

Question 34

What kind of energy is in a rock at the edge of a cliff?

Accepted Answer

Potential

Answer

Kinetic

Answer

Both potential and kinetic energy

Answer

none of the above

Question 35

At which point is potential energy greatest?

Accepted Answer

W

Answer

X

Answer

Y

Answer

Z

Question 36

When a pendulum swings, at which point is potential energy at its greatest?

Accepted Answer

1

Answer

2

Answer

3

Answer

4

Question 37

What kind of wave is pictured below?

Accepted Answer

transverse wave

Answer

compressional wave

Answer

sound wave

Answer

mechanical wave

Question 38

What property of this wave is represented by the letter "A"

Accepted Answer

wavelength

Answer

amplitude

Answer

crest

Answer

trough

Question 39

What property of the wave is represented by the letter "B"?

Accepted Answer

amplitude

Answer

crest

Answer

trough

Answer

wavelength

Question 40

What type of wave is this?

Accepted Answer

Longitudinal

Answer

Transverse

Question 41

This sphere is composed of all the living things

Accepted Answer

Biosphere

Answer

Hydrosphere

Answer

Atmosphere

Answer

Geosphere

Question 42

Composed of all the water on or near the earth

Accepted Answer

Hydrosphere

Answer

Biosphere

Answer

Atmosphere

Answer

Geosphere

Question 43

This sphere includes the continents, the ocean floor, all the rocks on the surface, and all of the sand in the deserts.

Accepted Answer

Geosphere

Answer

Hydrosphere

Answer

Biosphere

Answer

Atmosphere

Question 44

What is it called when plants give off water vapor as a waste product?

Accepted Answer

transpiration

Answer

condensation

Answer

evaporation

Answer

sublimation

Question 45

During which stage do clouds form?

Accepted Answer

condensation

Answer

evaporation

Answer

precipitation

Question 46

Water that flows over the land to streams, rivers, and lakes

Accepted Answer

Runoff

Answer

Evaporation

Answer

Condensation

Answer

Precipitation

Question 47

Water that is found underground in the cracks and spaces in soil, sand and rock is called:

Accepted Answer

Groundwater

Answer

River

Answer

Surface water

Answer

Snow

Question 48

The land area that water moves across or under while flowing to a stream, spring, pond, lake or river is a/an:

Accepted Answer

watershed

Answer

mountain

Answer

ocean

Question 49

To use water found in an aquifer people would

Accepted Answer

drill a well to below the water table

Answer

build a dam

Answer

purify ocean water

Question 50

Which layer of the atmosphere contains the ionosphere?

Accepted Answer

thermosphere

Answer

troposphere

Answer

stratosphere

Answer

mesosphere

Question 51

Earth's current atmosphere is

Accepted Answer

78% nitrogen, 21% oxygen, 0.9% argon and 0.037% carbon dioxide

Answer

78% oxygen, 21%nitrogen, 0.9% argon, 0.037% carbon dioxide

Answer

78% nitrogen, 21% argon, 1% oxygen

Answer

78% oxygen, 21% nitrogen, 1% carbon dioxide

Question 52

The layer of the atmosphere containing the ozone layer is

Accepted Answer

stratosphere

Answer

troposphere

Answer

thermosphere

Answer

mesosphere

Question 53

The layer of the atmosphere where meteors burn up

Accepted Answer

mesosphere

Answer

thermosphere

Answer

troposphere

Answer

stratosphere

7th grade science review

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