Science review 1
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100

x 6

How much of the earth' s surface is covered with water?

a. 1/4     b.  2/4

c. 3/4        d. 3/8

c. 3/4

100
x4

Which of the following planets is know as Earth's twin?

a  Mercury

b Venus

c Mars

d Jupiter

b. Venus
100
3 main gases that make up the Earth's atmosphere (x5)

a. oxygen, argon and nitrogen

b. nitrogen, oxygen, and carbon dioxide

c. oxygen, carbon dioxide, and helium

d. carbon dioxide, helium, and oxygen

a. oxygen, argon and nitrogen
100
x7

Weathering and erosion are harming the land by

a. building up new land for new habitats

b. breaking down land so new buildings can be built

c. breaking down and carrying away soil

d. forming new lakes

c.  breaking down and carrying away soil
100
grass....bird .....snake.....hawk

x5

which is the primary consumer

bird
100
A skydiver jumps from a plane.  Gravity is pulling the jumper down.  A strong gust of wind pushes against the jumper from the right.  Which of the following happens? x7

a) the wind did not affect the jumper and he continues to fall straight down.

b) the jumper continues to fall down but the wind pushes him to the left

c) the jumper continues to fall down but the wind pushes hime to the right

b) the jumper continues to fall down but the wind pushes him to the left
100
x5

What is a mixture?

a. salt water

b. petroleum jelly

c. water

d. aluminum foil

a. salt water
100
x9

What occurs at the boiling point of a substance?

a. the substance changes from a gas to a solid

b. the substance changes from a liquid to a solid

c. the substance changes from a solid to a liquid

d.  the substaqnce changes from a liquid to a gas

d . a substance changes from a liquid from a gas
200
x 4

When light shines through a prism it bends.  This is also know as 

a. reflection

b. refraction

c. absorption

d. shadow

b. refraction
200
What does the hygrometer measure?

a. wind speed

b. humidity, moisture in the air

c. amount of rain

d. wind direction

b. humidity, moisture in the air
200
x4

Salt water dissolves quicker in cold water by 

a. pouring

b. stirring

c. letting it sit still

d. adding a little at a time

b. stirring
200
 Over several years, a new sand bar has formed right off the coast of the ocean.  What is this know as? x6

a. deposition because the waves carries sand from the beach and deposits it into the water

b. deposition because the waves wash all the sand off the beach

c. wind erosion , because the sand is moving from the beach to the water

a
200
Which of the following animals changes its fur color during the winter to help protect it in its surroundings (x4)

a rabbit

b. arctic fox

c. polar bear

d. reindeer

b. arctic fox
200
x 6

A tomato is considered a fruit because it is produced from a flower and contains seeds.  Tomatoes are produced by 

a. spore reproduction

b.sexual reproduction

c. asexual reproduction

d. decomposing reproduction

a. sexual reproduction / seeds
200
x7

Of what are pure gold and pure copper examples:

a. compounds

b. elements

c. mixtures

d. solution

b. elementa
200
x4

Which will best increase the solubility of a tablespoon of sugar poured into a cup of water?

a. heating the mixture

b. stirring the mixture slowly 

c.  cooling the mixture

d. adding more water to the mixture

a. heating the mixture 
300
x3

If the Earth revolves around the sun for 4 yrs, how many times does the moon revolve around the Earth?

a. 12      b. 24        c. 36          d. 48


d.48
300
Which would be an example of chemical potential energy: (x3)

a. a spring compressed

b. a ball rolling down a hill

c. a child sitting at the top of a slide

d. powder on the tip of a match

d. powder on the tip of a match
300
budding is known as (x6) 

a . sexual reproduction

b. asexual reproduction

c. both sexual and asexual reproduction

d. seeds

b. asexual reproduction
300

x5

Water from the oceans pounds against a rock for hundreds of years.  Eventually a hole forms in the rock.  This is known as 

a. erosion

b. weathering

c. deposition

d. construction

a.  weathering
300
x 7

What is evaporation?

a . gas turns to liquid

b. solid turns to liquid

c. liquid turns to gas

d. water turns to ice

c. liquid turns to gas
300
x4

A single strawberry plant can produce long stems called runners. When runners reach open ground, they can grow roots and develop into a new strawberry plant. This is an example of 

a. sexual reproduction

b. respiration

c. asexual reproduction

d.  seed production

c.  asexual reproduction
300
x8

Frank has a beaker with a mixture of salt and water.  He would like to recover the salt from the water.  Which would be the best method to accomplish this?

a. evaporation                  b.  filtration

c. freezing                    d.  refraction

a. evaporation
300
x8

What type of substance is water?

a. compound

b. element

c. mixture

d. solution


a. compound
400
The Earth is mostly covered by oceans.  Oceans are found in the   (x7)

a. hydrosphere

b lithosphere

c. atmosphere

d. troposphere


a. hydrosphere
400
What is the deepest part of the earth (x7)

a. mantle

b. outer core

c. inner core

d crust

c. inner core
400
A spider plant reproduces when buds form on runners from the parent plant.  This is known as (x5)

a. runner reproduction

b. sexual reproduction

c. asexual reproduction

d. multicellular reproduction

c. asexual reproduction
400
Tommy placed a black, white, silver, and blue can under a heat lamp with a thermometer in each one.  Which one of the cans will be the coolest? (x4)

a. black, because it absorbs the heat

b. blue, because it wasn't under direct light

c. white because it would reflect light

d. silver, because it is shiny


c. white, because it would reflect light
400
x5

Frozen orange juice is place in a bowl.  Ager a few minutes it begins to melt.  What type of change has occurred?

 a.   chemical

b. melting

c. physical

d. mixture

c. physical
400
Megan lights a candle and watches it burn.  She observes that some wax melts, some smoke comes from the wick, the wick burns, and then the melted was hardens again.

Which represent a chemical change? (x5)

a.  Some wax melts, and smoke comes from the wick.

b. Some wax melts, and later melted wax hardens again.

c. The wick burns, and smoke comes from the wick.

d. Smoke comes from the wick, and later melted wax hardens again.

c.  The wick burns, and smoke comes from the wick.
400

x3

Which of the following is a physical reaction?

a.   lighting a match               b.  rusting metal

c. baking a cake                 d.  making sugar water

a. making sugar water
400
x6

Which is an example of a chemical change?

a. melting ice

b. dissolving salt in water

c. hammering metal into a thin sheet of foil

d. burning a piece of paper

d.  burning a piece of paper 
500
x 5

Where would you find icebergs?

a. hydrosphere

b. mesosphere

c. lithosphere

d. atmosphere

a. hydrosphere
500
x5

Oxygen and water chemically combine to make hydrogen peroxide.  Hydrogen peroxide is known as 

a. an element

b. a molecule

c. a compound

d. a rock

c. a compound
500
x7

Birds use their beaks adapt to the environment by 

a) being able to protect themselves from predators

b. being able to use their beaks to consume food

c. it helps them to build their nest

b.  being able to use their beaks to consume food
500
x5

The temperature is 25 degrees ... What type of weather would you expect

a. rain

b. snow

c. cloudy

d. clear

b. snow
500
x6

You are running a race.  Which system of the body helps you move?

a. skeletal

b. muscular

c. digestive

d.  nervous

b. muscular
500
Two rock samples are placed in water.  Sample A floats, but sample b sinks to the bottom.  

Which statement describes the 2 samples of rock (x7)

a. sample b has more mass

b. sample a has less volume

c. sample b has a greater density

d. sample a has a higher freezing point.

c . sample has a greater density
500
x5

Which list correctly identifies the elements that make up a water molecule?

a.  oxygen, hydrogen, nitrogen

b. oxygen, hydrogen, carbon

c. oxygen, hydrogen, oxygen

d. hydrogen, oxygen, hydrogen

d.  hydrogen, oxygen, hydrogen
500
x4

Which term defines a mixture in which one substance dissolves in another?

a. element

b. mixture

c. molecule

d. solution

d. solution
600
x3

Which layer of the atmosphere is closest to the earth?

a. atmosphere

b. troposphere

c. stratosphere

d. exosphere

b.  troposphere
600
x 4

The environmental protection agency wanted to start using an alternative fuel to cut down on pollution.  Which fuel would they chose?

a. ethanol

b. fossil fuels

c. crude oil

d. coal

a .  ethanol
600
x4

A student wanted to look at pond water to see what organisms they could find.  Which of the following tools would the student use?

a.  balance           b.  graduate cylinder

c. microscope         d. magnifying glass

c.  microscope
600
if you have objects on one end of the balance , what could you add to the other end to make the objects equal (x7)

a. liter weights

b. pound weights

c. gram weights

d. meter weights

c. gram weights
600
x8      

grass.... mice....snake...hawk...

What would happen if the mice were removed from the food 

a) The grass would increase and the hawk would decrease

b. The snakes would increase and the hawks would decrease

c. The grass would increase and the snakes would decrease

d.  The Hawks would increase and the grass would decrease

c
600
Tom needs to choose a material to make a lightweight cooking pot.  Which properties should he consider (x5)

a. texture and melting point

b. density and melting point

c. weight and freezing point

b.  density and melting point
600
x6

When 2 oxygen atoms bond chemically with 2 hydrogen atoms, hydrogen peroxide if formed.  Which phase defines this substance?

a. an element

b. a molecule

c. a compound

d. a mixture

c. a compound
600
x6

In which situation is a chemical reaction not taking place

a. salt dissolving in water

b. rusting of an old car in a junk yard

c. burning gasoline in a car

d. digestion of food in our body

a. salt dissolving in water
700
x4

Which layer do we live on?

a. inner core

b. mantle

c. outer core

d. crust

d crust
700
x 3

Tommy wanted to blow up a balloon using a gas that would make the balloon float.  What type of gas did he use?

a) oxygen

b. hydrogen

c. carbon

d. helium

d. helium
700

x4

Erosion destroys the earth by wind and water.  what is the quickest way that destruction could happen to the Earth?

a. volcano

b. earthquake

c. landslide

d. flood

b. earthquake
700
x5

You moved a goldfish bowl , a book and a flower vase from the floor to the 3rd shelf.  What type of potential energy does each object have?

a. elastic potential

b. gravitational potential

c. chemical potential

d) kinetic potential

b. gravitational potential
700
grass......? .......fox

x6


What is missing?

a. snake

b. mouse

c. hawk

d. flower

b. mouse
700
The sun appears to rise in the east and set in the west on  Earth.  Why does the sun appear to rise and set in this pattern? x6

A ) earth has. a coutnerclockwise rotation

b. Earth revolves around the sun in a counterclockwise motion

a. earth has a counterclockwise rotation
700
x4

Which is the best example of a chemical change?

a. fireworks exploding

b. cutting paper

c. crushing a can

d. melting snow

a. fireworks exploding
700
x5

Which of teh methods listed is not a method used for separating mixtures?

a.  sifting           b.  flotation

c.  filtration          d. dissolving

d. dissolving
800
x6

Which of the following planets are located before and after Earth?

a. Mercury and Mars

b. Venus and Saturn

c. Venus and Mars

d. Mercury and Neptune

c. Venus and Mars


800
x 6

Which of the following are gases?

a) copper, oxygen, nitrogen

b. ice, hydrogen, carbon

c. water vapor, aluminum, carbon dioxide

d. water vapor, carbon dioxide, oxygen

d. water vapor, carbon dioxide, and oxygen
800
A jelly fish is known to clone itself.  It does this by growing buds on its tentacles.  What type of reproduction is this (x7)

a. asexual

b. sexual

c.  seed

d. fish

a. asexual
800
x 6

grass.....bird.....snake.....hawk

Which is the secondary consumer

snake
800
x 6

Tom tosses a spring in the air.  What type of energy does the spring have?  

a. elastic and chemical

b. chemical and gravitational

c. gravitational and elastic

d. gravitational and physical

c elastic and gravitational
800

Which adaptation helps the scarlet king snake survive in its environment? x7

A. It reproduces between 4 and 20 eggs.

B. It usually grows to between 2 and 4 feet long.

C. It can live in deserts, wetlands, and grasslands.

D. It looks like the poisonous coral snake to confuse predators.

D. It looks like the poisonous coral snake to confuse predators.

800
x5

As water evaporates, which best explains the change that is occuring?

a. a gas changes to a liquid

b. a gas changes to a solid

c. a liquid changes to a gas

d. A liquid changes to a solid

c. a liquid changes to a gas
800
x7

Which material is a pure element?

a. alcohol

b. copper

c. salt

d. water

b. copper
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