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4th 9 Weeks Test (Science)

Total questions: 40

Worksheet time: 54mins

Name
Class
Date
1.

Which of the following explains why we have night and day?

a)

the phase of the moon

b)

the rotation of Earth on its axis

c)

the revolution of Earth around the sun

d)

the alignment of planets

2.

Substances can change in different ways. Sometimes they produce new substances. This is called a chemical change. Which is an example of a chemical change?

a)

an ice cube melting

b)

a pencil snapping in two

c)

an eraser getting smaller

d)

a cake baking in an oven

3.

Christina knows that wind and water are two sources of energy. Which of the following statements can Christina say is true about both wind and water?

a)

They are limited in supply on Earth.

b)

They can be used to generate electricity.

c)

They can replace all other energy sources.

d)

They can be used to produce solar energy.

4.

Dan fills a bowl with hot water. He places four different objects in the bowl. Then he smears a bit of butter on each object, just above the water's surface. The picture below shows Dan's experiment.


On which object will Dan first see butter melting?

a)

plastic ruler

b)

wood spoon

c)

metal spoon

d)

rubber spatula

5.
What does conserving resources mean?
a)
Use as much of the resources as you can
b)
Only use the resources at school
c)
Protecting the resource so it does not run out
6.
This is an example of what kind of force?
a)
Balanced Force
b)
Pushing Force
c)
Gravity Force
d)
Unbalanced Force
7.
If an object is stationary (not moving) the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
8.
Why does a rolling ball stop?
a)
Gravity
b)
Friction
c)
Waterfalls
d)
Sand
9.
If these boys are pulling with the same amount of force.  What will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
10.
What pulls a ball back to earth?
a)
Gas
b)
Gravity
c)
Friction
d)
Molecules
11.

The smallest part of an element, that still have the properties of that element is

a)

atom

b)

nucleus

c)

a molecule

d)

a compound

12.
What are the 3 states of matter?
a)
Water, air, ball
b)
mass, volume, grams
c)
solid, liquid, gas
d)
chair, table, pencil
13.
The picture shows an example of a ______________ change.
a)
chemical
b)
physical
c)
irreversible
d)
freezing
14.
If you dissolve 20g of sugar in 100g water, what is the mass of the mixture?
a)
100 g
b)
120 g
c)
150 g
15.
Energy on Earth was once energy from the
a)
Plants
b)
Moon
c)
Sun
16.
a)

The Sagebrush will decrease.

b)

The number of Frilled Lizards will decrease.

c)

The Sun will receive more energy.

d)

The number of Frilled Lizards will increase.

17.

Giant Salvinia is a water plant that grows in South

America. The United States brought the water

plant over for use in ponds and aquariums. A

disadvantage of this plant is that it grows quickly

in Texas and can completely cover ponds and

lakes. What effect does this most likely have on

an ecosystem?

a)

The Salvinia blocks sunlight that other native

plants need.

b)

The water supply increases in the area.

c)

Other plant growth in the area increases.

d)

The amount of rainfall in the area changes.

18.
a)

wheat only

b)

hawk, wheat,

and grasshopper

c)

snake only

d)

hawk and snake

19.
Two wires carrying electricity can create a spark if they come too close together. This spark can start a fire. Wires carrying electricity are usuallly covered  with plastic to keep them from starting a fire. Why does the plastic keep electricity from starting a fire?
a)
Plastic is a good insulator.
b)
Plastic can melt when heated.
c)
Plastic is softer than wire.
d)
Plastic conducts electricity.
20.
Whats the 5th planet?? 
a)
jupiter 
b)
mars
c)
earth
d)
THE SUN?
21.
What is gravity?
a)
The force that keeps you down.
b)
The solar system.
c)
The 7th planet..
d)
A force that keeps you up. :)
22.
What causes it to change seasons? 
a)
The tilt of the earths axis. 
b)
when the sun is closer to the northern hemisphere. 
c)
gravity.
d)
the orbit.
23.
Which gets all its energy from the sun?
a)
consumer
b)
producer
c)
decomposer
d)
no living organism
24.
Which mixture can be separated using a coffee filter?
a)
rocks and sand
b)
sand and water
c)
lemon juice and water
d)
sand and iron filings
25.
Plants are known as producers because they produce their own food.  How do producers receive the energy for this process?
a)
By consuming soil nutrients
b)
By absorbing sunlight
c)
By releasing water
d)
By producing oxygen
26.
Which of the following shows conservation of natural resources?
a)
Throw litter on the side of a highway
b)
Write on both sides of notebook paper
c)
Leave the water running while brushing teeth.
d)
Leave the lights on when exiting a room.
27.
Which liquid is the most dense?  
a)
oil
b)
water
c)
syrup
d)
plastic bottle
28.
What do magnets stick to?
a)
copper
b)
wood
c)
iron
d)
plastic
29.

Two words that correctly identify properties of these planets

Uranus -Neptune- Saturn- Jupiter

a)

rocky

b)

gaseous

c)

large

d)

small

30.

Which statement identifies the most likely outcome if the rabbit population suddenly reduced?

a)

Owls would become extinct because they have no food

b)

Hawks would have less food available so their population would decrease

c)

Grasshoppers would have less food available so their population would decrease

d)

Grasses in the area would die and all of the animals would have to move to another area to survive

31.

A student is going to push a ball off a table


Which statement best predicts how the energy of the ball will change immediately after the push?

a)

Both potential energy and kinetic energy will increase

b)

both potential energy and kinetic energy will decrease

c)

Potential energy will decrease, and kinetic energy will increase

d)

Potential energy will increase, and kinetic energy will decrease

32.

Which is the correct order of the food chain of the channel catfish?

a)

A,B,C,D

b)

B,C,D,A

c)

C,D,A,B

d)

D,B,A,C

33.

The diagram shows four blocks of the same size in a water tank. Block Y has the same density as the water.


Four additional block are being added to the water as detailed (Block J= 1kg) - (Block K =3 kg)- (Block L=5 kg)-(Block M=7kg)

Pick two answers choices - the two blocks that will float and two blocks that will sink.

a)

BLOCK J & K WILL FLOAT

b)

BLOCK J & K WILL SINK

c)

BLOCK L & M WILL SINK

d)

BLOCK L & M WILL FLOAT

34.

Which process would be the best way to increase the concentration in a solution of sugar and water?

a)

Decrease the amount of sugar, and increase the amount of water

b)

Increase the amount of sugar, and keep the amount of water constant

c)

Decrease the amount of sugar, and decrease the amount of water

d)

Increase the amount of water, and keep the amount of sugar content

35.

Jamie sketched the following picture of the landscape he saw while he was on vacation. It included cacti and barren rock.


What can you conclude about what kinds of plants can grow in this climate?

a)

Only plants that grow very rapidly can grow in this climate.

b)

Only plants that need frequent, heavy rainfalls can grow in this climate.

c)

Only plants that can survive with very little water can grow in this climate.

d)

Only plants that can handle extreme cold can grow in this climate.

36.
Which of the following is closest to Earth?
a)
Moon
b)
Sun
c)
stars
d)
constellations
37.
Hot coffee is stirred with a spoon.  The spoon gets hot due to
a)
conduction
b)
convection
c)
radiation
38.
Is hammering wood together to build a house a chemical or physical change?
a)
chemical
b)
physical
39.
Is melting butter for popcorn a chemical or physical change?
a)
chemical
b)
physical
40.
the mice's energy is transferred directly to the
a)
fox
b)
bird
c)
owl
d)
rabbit