Quiz about Science Review

Question 1

Leslie conducted an experiment testing plant growth under red, blue, and yellow lights. Her hypothesis is that if plants are grown under different colored lights, then the plants under the red lights will have the most growth. What is the independent variable?

Accepted Answer

the different colored lights

Answer

the color of the plant

Answer

the red light

Answer

the amount of growth

Question 2

What statement is an inference from the Brand of Tires Tested data?

Accepted Answer

Brand B tires must be defective since they have the slowest time.

Answer

Brand A was the second to slowest with a time of 25.3 seconds

Answer

Brand D is the fastest with an average speed of 32.0 seconds

Answer

Brand C has three different times during the three trials

Question 3

Thunderstorms form from what type of clouds?

Accepted Answer

Cumulonimbus

Answer

Stratus

Answer

Cumulus

Answer

Cirrus

Question 4

What is the independent variable in the experiment pictured?

Accepted Answer

Different liquids poured on the plants

Answer

Different types of soil for the plants

Answer

Different types of plants in the containers

Answer

Different heights that each plant will grow

Question 5

What are the three major elements found in the Earth's crust?

Accepted Answer

Aluminum, silicon, and oxygen

Answer

Potassium, titanium, and hydrogen

Answer

Iron, silicon, and carbon

Answer

Magnesium, sodium, amd potassium

Question 6

What was the name of the first satellite that orbited Earth?

Accepted Answer

Sputnik 1

Answer

Explorer 1

Answer

Saylut

Answer

Voyager

Question 7

What is a disadvantage to using solar energy?

Accepted Answer

not available all the time

Answer

causes air pollution

Answer

floods land

Answer

produces radioacive waste

Question 8

A farmer wants to grow corn near a river. What can he do to help the river's water quality?

Accepted Answer

avoid planting the corn too close to the river

Answer

add extra fertilier so the corn will grow

Answer

let the farm animals wade in the river

Answer

keep the fields plowed to keep the soild exposed

Question 9

Which of the following positions of the Earth, moon, and sun causes the highest and lowest tides?

Accepted Answer

Question 10

Which layer of the atmosphere protects us from meteors?

Accepted Answer

Mesosphere

Answer

Troposphere

Answer

Stratosphere

Answer

Exosphere

Question 11

Which nonrenewable energy source is found in large amounts in Virginia?

Accepted Answer

Coal

Answer

Trees

Answer

Petroleum

Answer

Wind

Question 12

What two factors combined keep the planet's in orbit around the sun?

Accepted Answer

Inertia and gravitational pull of the sun

Answer

Seasons and phases of the moon

Answer

solar and lunar eclipses

Answer

tides and the Earth's rotation

Question 13

What phase of the moon is labeled 2?

Accepted Answer

waxing crescent

Answer

waxing gibbous

Answer

waning crescent

Answer

waning gibbous

Question 14

Which planet is NOT an inner planet?

Accepted Answer

Jupiter

Answer

Venus

Answer

Earth

Answer

Mars

Question 15

When the North Pole is tilted towards the sun, it is -

Accepted Answer

summer in the Northern Hemisphere and winter in the Southern Hemisphere

Answer

winter in the Northern Hemisphere and summer in the Southern Hemisphere

Answer

summer in both hemispheres

Answer

winter in both hemispheres

Question 16

The planet labeled 2 is -

Accepted Answer

Venus

Answer

Mars

Answer

Earth

Answer

Mercury

Question 17

Earth is the only planet in our solar system that has -

Accepted Answer

oceans

Answer

a rocky core

Answer

an atmosphere

Answer

moons

Question 18

Which scientist believed that the sun was the center of the solar system and the orbits were circular paths?

Accepted Answer

Copernicus

Answer

Aristotle

Answer

Ptolemy

Answer

Kepler

Question 19

Byron is investigating how temperature affects growth of mold on bread. Before starting his procedure, he states in his journal that he thinks wet bread placed in the refrigerator will grow the most mold. Which term best describes Byron's statement?

Accepted Answer

hypothesis

Answer

conclusion

Answer

result

Answer

variable

Question 20

To determine the boiling point of a salt water solution, a student heats 20 ml of the solution in a test tube. She records the temperature every minute for ten minutes. In the lab report, how should she identify time?

Accepted Answer

as a constant in the experiment

Answer

as the control of the experiment

Answer

as the dependent variable

Answer

as the independent variable

Question 21

Natasha wants to know whether adding coffee to the soil will help plants grow. She plants seeds in pots and adds coffee to the soil. What else should Natasha do to find out if coffee helps plants grow?

Accepted Answer

grow some seeds without coffee

Answer

give the plants fertilizer

Answer

add more water to the soil

Answer

put the plants in the shade

Question 22

Energy created from wood, peat moss, and manure is called __________________ energy.

Accepted Answer

biomass

Answer

geothermal

Answer

natural

Answer

solar

Question 23

The particles with no charge in an atom are the _______.

Accepted Answer

neutrons

Answer

electrons

Answer

protons

Answer

protons and neutrons

Question 24

How many electrons does Potassium (K) have?

Accepted Answer

19

Answer

39

Answer

20

Answer

58

Question 25

South Carolina is humid during the summer months. Which of the following is the most likely cause of the humid conditions?

Accepted Answer

evaporation from the surface of the ocean

Answer

groundwater bubbling to the surface

Answer

runoff from inland mountains

Answer

flooding from river and streams

Question 26

What type of weather will Florida expect when the front comes through?

Accepted Answer

heavy precipitation or thunderstorms

Answer

light rain or drizzle

Answer

many days of rain, snow, or fog

Answer

sunny, clear, and windy

Question 27

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

Accepted Answer

convection

Answer

conduction

Answer

radiation

Answer

Insolation

Question 28

The energy coming in to from the sun minus the energy being radiated out is known as

Accepted Answer

Earth's energy budget

Answer

the greenhouse effect

Answer

global warming

Answer

the electromagnetic spectrum

Question 29

What is a partially enclosed body of water that has a mixture of salt water from the ocean and fresh water from rivers and streams?

Accepted Answer

Estuary

Answer

Watershed

Answer

Tributary

Answer

Bay

Question 30

A specific source of pollution is known as

Accepted Answer

Point source

Answer

Water pollution

Answer

Non-point source

Question 31

The cloudiness of water is known as

Accepted Answer

turbidity

Answer

tributary

Answer

saltiness

Answer

distilled

Question 32

What word describes when water is attracted to other substances?

Accepted Answer

adhesion

Answer

cohesion

Answer

capillary action

Answer

surface tension

Question 33

molecule in which opposite ends have opposite electric charges

Accepted Answer

polar molecule

Answer

cohesion

Answer

hydrogen bond

Answer

solution

Question 34

Which characteristic of water will allow a paperclip to remain floating on water when the paperclip is gently placed on top of the water?

Accepted Answer

surface tension

Answer

adhesion

Answer

solvent properties

Answer

nonpolar

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