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6th Grade Science Cumulative Test Review 2018-2019

Total questions: 50

Worksheet time: 50mins

Name
Class
Date
1.

This variable in an experiment is the one being deliberately changed by the scientist.

a)

dependent variable

b)

independent variable

c)

data

d)

control group

2.

What step does every scientific experiment begin with?

a)

hypothesis

b)

question/problem/purpose

c)

procedures

d)

conclusion

3.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid
4.

The summary at the end of an experiment that explains the results.

a)

conclusion

b)

procedures

c)

materials

d)

responding variable

5.

Observation or inference: This is a brown puppy.

a)

Observation

b)

Inference

6.

Observation or Inference: The cat is scared.

a)

Observation

b)

Inference

7.

Which answers are QUANTITATIVE? Select all of the right answers.

a)

There is one white goose.

b)

The boy is really upset.

c)

The goose looks scary,

d)

The boy has 2 white sneakers.

8.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
9.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
c)
Both potential and kinetic energy
d)
none of the above
10.

Which is the best example that something has kinetic energy?

a)

a. a car parked on a steep hill

b)

b. a tennis ball rolling across the court

c)

c. a picture hanging on the wall

d)

d. a piece of coal before it's burned

11.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Chemical
d)
Sound
12.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
13.

Fossil Fuels are

a)

pieces of rock that have been compacted many times

b)

rock that contains 50% plant and animal remains

c)

metamorphic rock

d)

fuels that form from the remains of plant and other organisms that were buried and altered over million of years

14.

Fossil Fuels (choose ALL that apply)

a)

considered nonrenewable resources

b)

cause pollution in the atmosphere

c)

are renewable resources

d)

oil, coal and natural gas

15.

Coal is formed from

a)

rocks

b)

a factory

c)

remains of small organisms that lived many millions of years ago in our oceans

d)

plant remains along with heat and pressure

16.
Today, most of the coal is used to:
a)
power steamships and steam trains
b)
heat homes and businesses
c)
produce electricity
d)
make iron and steel
17.
Why is solar energy considered renewable energy?
a)
It's cheaper than fossil fuels
b)
The sun's energy would not run out for billions of years
c)
Solar energy recharges batteries
d)
All of them
18.

Which type of alternative energy source is shown in this picture?

a)

Wind

b)

Solar

c)

Hydroelectric

d)

Geothermal

19.
What do we call large areas of windmills?
a)
Wind farms
b)
Hurricanes
c)
Turbines
d)
Wind tunnels
20.
Trees, crops, garbage, & landfill gas are all examples of 
a)
Energy
b)
Biomass
c)
Heat
d)
Nuclear waste
21.

A insect like a water strider can skate along the top of a pond because:

a)

covalent bonds result in water cohesion

b)

hydrogen bonds result in water cohesion (surface tension)

c)

low surface tension of water

22.
Which energy conversion is taking place when you put gasoline in a car?
a)
thermal -> electrical
b)
mechanical -> electrical
c)
chemical -> mechanical
d)
mechanical -> electromagnetic
23.
Carbon dioxide (CO2) combines with water as raindrops fall through the atmosphere. This makes a weak acid, called carbonic acid. Carbonic acid is a very common in nature, where it works to dissolve rock. Pollutants, such as sulfur and nitrogen from fossil fuel burning, create sulfuric and nitric acid. Sulfuric and nitric acids are the two main components of acid rain, which speeds up chemical weathering.
This statue was probably destroyed by _____.
a)
Wind
b)
Humans
c)
Acid Rain
d)
Animals
24.

Today's atmosphere is mostly made up of which gas?

a)

Oxygen

b)

Carbon Dioxide

c)

Argon

d)

Nitrogen

25.

Water is polar because...

a)

The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.

b)

The molecule has two poles, at which the it is colder than other regions of the molecule.

c)

The unequal sharing of electrons gives the water molecule a slight negative charge near its hydrogen atoms and a slight positive charge near its oxygen atom.

d)

The water molecule is neutral.

26.

The Earth acts like a greenhouse that catches and traps heat from the sun.

a)

true

b)

false

27.

How much of the Sun's Energy is absorbed by land and oceans?

a)

20%

b)

7%

c)

51%

d)

64%

28.

Water can dissolve many things so it is called the .....

a)

wonderful water

b)

cohesion

c)

liquid

d)

universal solvent

29.

Earth's atmosphere is held down by

a)

radiation

b)

gravity

c)

magnetism

d)

conduction

30.

Which change describes a substance that changes shape, form, or appearance but is still the same substance?

a)

physical change

b)

chemical change

31.

Which layer in the atmosphere protects us form harmful UV radiation?

a)

Ozone

b)

Troposphere

c)

Ionosphere

d)

Exosphere

32.

What layer does weather occur in?

a)

mesosphere

b)

troposphere

c)

thermosphere

d)

stratosphere

33.

What is the correct order of the planets, starting at the sun?

a)

Mars, Venus, Earth, Mercury, Jupiter, Saturn, Uranus, Neptune

b)

Mercury, Venus, Earth, Jupiter, Mars, Uranus, Saturn, Neptune

c)

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

d)

Neptune, Uranus, Saturn, Jupiter, Mars, Earth, Venus, Mercury

34.

Planets orbit the Sun in a shape called a(n)

a)

circle

b)

ellipse

c)

focus

d)

perihelion

35.
Which has a STRONGER force of gravity, Earth or the Moon?
a)
Earth
b)
Moon
36.
The number at the top of each square on the periodic table is the ...
a)
atomic number
b)
atomic mass
c)
Chemical Symbol
d)
Element Name
37.

This is the largest planet in the solar system.

a)

Saturn

b)

Jupiter

c)

Uranus

d)

Venus

38.

The sun shines down on this family as the play on the beach. What type of energy/heat transfer is this?

a)

conduction

b)

convection

c)

radiation

39.

Second layer of the atmosphere, extending about 17-48 kilometers above the earth’s surface. It contains a layer of gaseous ozone, which filters out about 95% of the incoming harmful ultraviolet radiation emitted by the sun

a)

Mesosphere

b)

Troposphere

c)

Stratosphere

d)

Ozone

40.

Daily change in the level of ocean water

a)

Currents

b)

Waves

c)

Tides

d)

Surf

41.
Anything that has mass and takes up space is called
a)
volume
volume
b)
matter
c)
magnetism
d)
electricity
42.
If its ____ in the Northern hemisphere, then its summer in the Southern hemisphere. 
a)
spring
b)
summer
c)
fall
d)
winter
43.
The smallest component of an element and the building block of all matter.
a)
Atom
b)
Element
c)
Proton
d)
Nucleus
44.

Every element is unique because it has a specific number of _________________.

a)

neutrons

b)

elements

c)

protons

45.
The man goes to take the hot pot off the stove with his bare hands.
a)
conduction
b)
convection
c)
radiation
46.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
47.

A hurricane gets its energy from

a)

Warm ocean waters

b)

high air pressure

c)

winds along surface

d)

Sun

48.

Which element is this?

a)

Nickel

b)

Neon

c)

Sodium

d)

Nitrogen

49.
The molecules in the picture are tightly held together with little movement. They have shape and energy.  Therefore, the picture represents _________.
a)
solid
b)
liquid
c)
gas
d)
plasma
50.

How many Nitrogen atoms are in the in H2C3O4N5?

a)

2

b)

3

c)

4

d)

5

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