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Science Review

Total questions: 70

Worksheet time: 1hrs 19mins

Name
Class
Date
1.

Which best describes what a food chain shows you?

a)

Energy flow through an ecosystem

b)

A bunch of arrows

c)

Consumers going into other consumers

d)

Who eats who

2.
What are plants called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Scavengers
3.
What are animals called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Plants
4.
Where does the energy start in this food chain?
a)
Plant
b)
Sun
c)
Deer
d)
Wolf
5.
What is the role of a producer?
a)
Use sunlight to make food
b)
Gain energy from eating other organisms
c)
Keep other species from overpopulating
d)
Breaking down dead stuff 
6.
What is the role of decomposers in a food chain?
a)
Use sunlight to make food
b)
Eat other organisms to gain energy
c)
Make the food for the whole food chain
d)
Break down dead organisms and add nutrients to the soil
7.
Which of these organisms would receive energy from the snake?
a)
Plant
b)
Rabbit
c)
Mouse
d)
Hawk
8.
Which type of consumer eats plants only?
a)
Herbivores
b)
Omnivores
c)
Carnivores
d)
Scavengers
9.
Which type of consumer eats meat only?
a)
Producers
b)
Herbivores
c)
Carnivores
d)
Omnivores
10.
Which type of consumer eats meat and plants?
a)
Herbivores
b)
Carnivores
c)
Omnivores
d)
Plants
11.

Which of these is true about this food web?

a)

The Owl gets its energy from the producer.

b)

The Jackal can get its energy from two different consumers.

c)

There is no producer in this web.

d)

The Mouse is the secondary consumer

12.

The arrows in a food chain or web represents what?

a)

They give you directions.

b)

It shows how sunlight flows within an ecosystem.

c)

They show what direction the energy is flowing between organisms.

d)

They represent how water is transferred within a habitat.

13.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
14.
Why might an organism have more than one arrow coming from them in a food web?
a)
More than one organism may eat them. 
b)
They may eat more than one other organism. 
c)
This organism gets its energy from multiple sources. 
d)
They have no resources available to them.
15.

When light bounces off of an object into a different direction

a)

absorbtion

b)

refraction

c)

reflection

16.

When light hits a translucent object and bends

a)

absorbtion

b)

refraction

c)

reflection

17.

when light is stored inside of an object and turns into heat energy

a)

absorbtion

b)

refraction

c)

reflection

18.

How is white light able to separate through a prism?

a)

the light is being absorbed

b)

the light is being refracted

c)

the light is being reflected

19.

We are able to see a mirrored image of the mountains on the water through...

a)

refraction

b)

reflection

20.
a)

reflection

b)

refraction

21.
a)

reflection

b)

refraction

22.

Mrs. Burns's class is playing tug of war at recess. They decide to play boys against girls. There are 11 girls and 6 boys. As soon as the game began, the girls were able to move the rope to their side. Why?

a)

There was an equal amount of force pulling on each side making it unbalanced.

b)

There was an equal amount of force pushing on each side making it unbalanced.

c)

There was more force on the girls side making it unbalanced.

d)

There was less force on the girls side making it unbalanced.

23.

Stephanie was at the skateboard park at the top of a ramp. She was trying to decide which ramp to take her skateboard down. One ramp was 9 feet high and the other ramp was 5 feet high. She wanted to travel as far as she possibly could without having to use any pushing force. She chose the ramp that was 9 feet high. What statement explains why she chose the 9 ft. ramp to travel the greater distance?

a)

Stephanie knows the lower the incline the greater distance you will travel.

b)

Stephanie knows the higher the incline the slower you go.

c)

Stephanie knows the lower the incline the faster you go.

d)

Stephanie knows the higher the incline the greater distance you will travel.

24.

Which scenario is showing gravity as the main force moving an object?

a)

My pencil fell to the ground when I dropped it.

b)

A plane taking off.

c)

A feather floating in the wind.

d)

A boy threw a ball up in the air.

25.

A car was traveling on a dirt road and on a concrete road. The car was able to travel on the concrete road without using as much force. Which description explains this scientific fact?

a)

The dirt road has more friction because the surface is not smooth.

b)

The concrete road has more friction because the surface is smoother.

c)

The concrete road has more gravity because the surface is not smooth.

d)

The concrete road has less gravity because the surface is not smooth.

26.

_______ is the force that opposes motion between two surfaces that are in contact with one another. This will cause the objects to pull and/or drag against one another.

a)

Gravity

b)

Momentum

c)

Magnetism

d)

Friction

27.

(14) Which material, when placed under a book, would best prevent the book from sliding off a table that is raised on an incline?

a)

Glass plate

b)

Silver tray

c)

Poster board

d)

Rubber mat

28.
______________________ is any push or pull on an object.
a)
Force
b)
Mass
c)
Gravity
d)
Air Resistance
29.
What is a change of position of an object?
a)
motion
b)
weight
c)
mass
30.
If I kick a soccer ball across the field, what vocabulary word tells me why the ball would slow down in the grass?
a)
acceleration
b)
friction
c)
gravity
31.
Philip is playing tug of war with Nancy. They both understand that to win the game of tug of war, one player must pull the flag over their opponent's line, but during this particular game, the flag tied to the center of the rope is not moving.What is happening to the rope in this example?
a)
Philip is applying more force in one direction. 
b)
Nancy is applying more force in one direction. 
c)
Philip and Nancy are applying equal forces in the same direction. 
d)
Philip and Nancy are applying equal forces in opposite directions. 
32.

You want to move two boxes. Which sentence correctly describes the force needed to move the boxes?

a)

More force is needed to move the lighter box.

b)

More force is needed to move the heavy box.

33.
Climate is ______.
a)
what the air is like outside
b)
the temperature of a day
c)
pattern of weather in a place over many years.
34.
The condition of the atmosphere, such as temperature, cloud cover, wind speed and rainfall
a)
climate
b)
weather
c)
trend
d)
season
35.
A tornado warning was issued for Kansas City this morning.
a)
Climate
b)
Weather
36.

The average high temperature for Laredo is 90 °F.\degree F.  

a)

weather

b)

climate

37.

What conditions are needed to form coal?

a)

Heat and pressure

b)

Heat

c)

Moisture and pressure

d)

Cool and moist

38.

The four factors that contribute to the formation of fossil fuels are

a)

energy, sunlight, food and water

b)

natural gas, oil, and coal

c)

organic matter, high temperatures, time and pressure

d)

plastic, medicine, cosmetics and jewelry

39.
What are the 3 main fossil fuels?
a)
A. Coal, oil, and vegetable oil. 
b)
B. Coal, Oil, and Natural Gas
c)
C. Electricity, Gasoline, Petroleum
d)
D. Coal, Oil, Non-renewable Resources
40.
Fossil Fuels formed over long periods of time after particles in water settled to the sea floor and formed marine mud.  What kinds of particles needed to be present in the marine mud in order for fossil fuels to form.
a)
A. Mostly sand and a few small bits of wood
b)
B. Mostly decaying organisms
c)
C. Mostly lava and a few sedimentary rocks
d)
D. Mostly metal minerals
41.

Coal is typically found..

a)

Under large rocks

b)

Under grasslands

c)

Under swampy marshlands

d)

Under the ocean floor

42.

What is natural gas formed from?

a)

Oil

b)

Coal

c)

Heat

d)

Sedimentary Rock

43.

What is organic matter?

a)

Living plants and animals

b)

Only plants

c)

Only animals

d)

Dead plants and animals

44.

How many light bulbs would be ON if the wire of this circuit was cut where the scissors are?

a)

1

b)

3

c)

2

d)

0

45.

This steel paperclip would allow electricity to flow through it because:

a)

it is a conductor

b)

it is an insulator

c)

it is friendly

d)

it breaks the circuit

46.

This rubber ducky would block the flow of electricity, because:

a)

it is a conductor

b)

it is an insulator

c)

it is yellow

d)

it completes the circuit

47.
An incomplete circuit is shown.
To complete the circuit, a wire should be placed from —
a)
Point D to Point C
b)
Point B to Point C
c)
Point A to Point D
d)
Point B to Point D
48.
This circuit has a battery, buzzer, and switch.
When the switch is closed the buzzer will sound because -
a)
the switch gives energy to the battery
b)
the buzzer is made of special plastic
c)
the wires are cooled by the surrounding air
d)
electricity can flow in a complete path
49.

How many switches need to be closed to turn on at least one light bulb?

a)

0

b)

1

c)

2

d)

3

50.

Susie closed switches B, C, and D. None of the light bulbs came on. Why?

a)

Because the battery is not connect properly

b)

The switches are broken

c)

Switch A is open and blocking the flow of electricity

d)

The light bulbs are not connected properly

51.

How is the river changing the valley over time?

a)

The river is drying up, exposing rocks

b)

The river becomes more narrow

c)

The river freezes

d)

The river is widening, covering more land and rocks.

52.

Which is an example of wind weathering?

a)

A rock cracking in half

b)

A root breaking a sidwalk

c)

A road cracking in winter

d)

A desert rock changing shape over many years (rock arch)

53.
This is the process of dropping sediment in a new location.
a)
Weathering
b)
Erosion
c)
Deposition
54.
This is the process of breaking rock into smaller pieces.
a)
Weathering
b)
Erosion
c)
Deposition
55.

Over long periods of time, deposition may change the Earth’s surface by _____.

a)

forming new land features.

b)

breaking down large rocks into smaller ones.

c)

washing away beaches.

d)

moving topsoil.

56.

A cliff formed near the ocean. Which statement best describes how this cliff formed?

a)

Warm air melted the rock.

b)

Sun rays evaporated the rock.

c)

Ocean waves washed away rock.

d)

Plant roots pushed away the rock.

57.
What is the process that picks up and moves weathered rocks?
a)
Deposition
b)
Landslide
c)
Weathering
d)
Erosion
58.

Condensation means...

a)

water changing from vapor to liquid by cooling air (loss of heat)

b)

water running downhill

c)

water falling from the sky

d)

water heating up and rising as gas

59.
Snow, sleet, hail, and rain are all examples of  ________________. 
a)
evaporation
b)
condensation
c)
accumulation
d)
precipitation
60.
Choose the item that is less dense than water (floats).
a)
Beach Ball
b)
Brick
c)
Magnet
d)
Metal Key
61.
Which item is more dense than water (sinks)?
a)
Styrofoam Cup
b)
Wooden Block
c)
Silverware
d)
Beach Ball
62.

Thermal and electrical are both examples of?

a)

Texture

b)

Conductivity

c)

Solubility

d)

Transmissions

63.
A student made a list of activities that involve energy. Which activities on the list are examples of the use of mechanical energy?
a)
Activities 1, 4, and 6
b)
Activities 2, 4, and 5
c)
Activities 1 and 2
d)
Activities 3, 5, and 6
64.
Water flows through turbines in dams like the one shown below. The flowing water makes the turbines spin. What type of energy is used to make the turbines spin in this type of dam?
a)
Light energy
b)
Thermal energy
c)
Sound energy
d)
Mechanical energy
65.
Photosynthesis and solar panels use this form of energy.
a)
Mechanic
b)
Light
c)
Thermal
d)
Sound
66.
Characteristics passed from parents to their offspring.
a)
behavior
b)
learned trait
c)
inherited trait
d)
function
67.

What is NOT an example of an inherited TRAIT?

a)

eye color

b)

tongue rolling

c)

height

d)

riding a skateboard

68.

Which one of the following would you use to separate sand from iron filings?

a)

a bar magnet

b)

filter paper

c)

hot plate

d)

strainer

69.
How would you separate a mixture of sand and salt? 
a)
Mix them with water and let the water evaporate
b)
Mix them with water, pour the mixture through a sieve, then let the water evaporate
c)
Heat the sand and salt mixture for 5 minutes, then let it cool
d)
I would not do any of these because none of these options would work
70.

Which physical property of salt would stay the same in a mixture of salt particles and water?

a)

color

b)

shape

c)

size

d)

taste

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