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AlienInvation

Total questions: 50

Worksheet time: 43mins

Name
Class
Date
1.
What geologic process can change granite (igneous rock) into gneiss (metamorphic rock)?
a)
Compacting and cementing
b)
Cooling 
c)
Heat and pressure
d)
Melting
2.

Which characteristic is found only in sedimentary rocks?

a)

Fossils

b)

Crystals

c)

Gas Bubbles

d)

Glassy Surface

3.

The Mount Rushmore National Monument is carved from the granite (formed from magma underground) of South Dakota's Black Hills. What type of rock is granite?

a)

Igneous

b)

Metamorphic

c)

Sedimentary

d)

None of the above

4.

The seated sculpture of President Lincoln inside the Lincoln Memorial was carved out of white Georgia marble (formed from Earth's pressure and heat). What type of is marble?

a)

Igneous

b)

Metamorphic

c)

Sedimentary

d)

None of the above

5.
Which type of rock is made by small bits of rock, mud, or sand compacted and cemented together?
a)
Coal
b)
igneous
c)
metamorphic
d)
sedimentary
6.
Which type of rock results from melting and cooling of magma?
a)
Igneous
b)
Metamorphic
c)
Sedimentary
d)
Extrusive
7.
When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.
a)
Water
b)
Atmosphere
c)
Sun
d)
Air
8.
Which of the following add carbon dioxide to the atmosphere?
a)
volcanoes
b)
combustion of fossil fuels
c)
animal and plant respiration
d)
all of these
9.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
10.
The average temperature of the surface of Earth has increased approximately 1°C in the past century. Which reason best explains this increase in temperature?
a)
lower levels of ozone in the atmosphere
b)
lower levels of nitrogen in the atmosphere
c)
higher levels of carbon dioxide and other greenhouse gases in the atmosphere
d)
higher levels of oxygen in the atmosphere
11.

Which process removes carbon dioxide from the atmosphere?

a)

deforestation

b)

tree farms

c)

burning fossil fuels

d)

cellular respiration

12.
Visible light reaches Earth’s surface while infrared light is trapped as heat. Which characteristic of Earth’s atmosphere causes this to happen?
a)
the hole in the ozone
b)
the greenhouse effect
c)
atmospheric pressure
d)
the inversion layer
13.
Which of the following is the best conclusion that can be made from this graph?
a)
atmospheric carbon dioxide levels have been decreasing since 1960
b)
Hawaii has a lot of carbon dioxide
c)
humans have been working hard to decrease carbon dioxide levels
d)
atmospheric carbon dioxide levels have increased steadily since 1960
14.
The main human activity that releases greenhouse gases is
a)
using bottled water
b)
burning fossil fuels
c)
texting on cellphones
d)
eating meat
15.
Soap is a weak base.  What is true about the taste of bases?
a)
they taste sour
b)
they taste sweet
c)
they taste bitter
d)
they taste salty
16.
Explain what happens when a strong acid and a strong base are poured into the same container.
a)
they form separate layers
b)
they mix physically but not chemically
c)
they break apart into separate elements
d)
they react chemically to form a salt
17.
Ranging from 0 to 14, a pH value indicates how acidic or basic a solution is.  Which of these pH values would be a strong acid?
a)
2
b)
6
c)
9
d)
13
18.
Litmus paper can tell you if a solution is acidic, neutral or basic by changing color when placed in a solution.  If you test a base with litmus paper, it will turn ____________.
a)
purple
b)
red
c)
blue
d)
pink
19.
When dissolved in water, acids produce:
a)
bases
b)
salts
c)
hydrogen ions
d)
hydroxide ions
20.
Any substance that produces hydroxide ions in water is known as _____________.
a)
an acid
b)
a hydrogen ion
c)
a base
d)
a neutral
21.

Whats Newtons First Law?

a)

The more force applied to an object the faster it will accelerate.

b)

An object in motion will stay in motion and an object at rest will stay at rest unless acted by an outside force.

c)

for every ection there is an equal and oposite reaction

22.

The Law of Inertia

a)

Newtons 1st Law of motion

b)

Newtons 2nd Law of motion

c)

Newtons 3rd Law of motion

23.

Newton's third law states that any action will have a(n) ___ and ___ reaction

a)

Equal and similar

b)

Equal and opposite

c)

Equal and different

d)

Greater and opposite

24.

What is the Net Force?

a)

10

b)

0

c)

3

d)

2

25.
What is the net force?
a)
30 N 
b)
25 N 
c)
5 N 
d)
55 N 
26.
Any push or pull on an object.
a)
force
b)
velocity 
c)
inertia
d)
momentum
27.
What is Newtons 2nd law of motion?
a)
Pancakes 
b)
Force= Mass multiplied by acceleration
c)
For every action there is a equal and opposite  re-action.
d)
Law of gravity 
28.

What is the Law of Conservation Of Energy

a)

Energy that cannot be created or destroyed

b)

Energy that can be created or destroyed

c)

Energy that can be destroyed

d)

Energy that can be created

29.

The unit of work is

a)

watt

b)

hertz

c)

joule

d)

pascal

30.
How much work is done in holding a 15 N sack of potatoes while waiting in line at the grocery store for 3 minutes?
a)
15 J
b)
45 J
c)
0 J
d)
5 J
31.

What is energy?

a)

the ability to turn on a light

b)

the amount of electricity needed to light one light bulb

c)

the ability to do do work

d)

the temperature of an oven when making brownies

32.

List 3 kinds of renewable energy?

4 lines
33.

What do windmills, hydroelectric Dams, and coal power plants all have in common, other than making electricity. ( think about how they work).

4 lines
34.

Give an example of heat bing used to make electricity.

4 lines
35.

Explain the difference between a renewable and a non-renewable energy source.

4 lines
36.

Choose all of the following that are green house gases

a)

Methane CH4

b)

CO2 Carbon Dioxide

c)

Water H20

d)

N2O  Nitrous Oxide

e)

N2 Nitrogen gas

37.

Is this a physical or chemical change?

a)

Physical

b)

Chemical

38.

Bubbles form when water boils. Is this evidence of chemical change?

a)

Yes, because water is changing.

b)

Yes, because the water is reacting.

c)

No, because the vapor is still water.

d)

No, because water doesn't react with anything.

39.

This is an example of _____ change.

a)

Physical

b)

Chemical

40.

Wood is chopped into small pieces. Then, it is burned to cook food. This is an example of a ____ change followed by a ____ change.

a)

chemical, physical

b)

physical, chemical

c)

physical, physical

d)

chemical, chemical

41.

Which type of change is occurring in the picture?

a)

Chemical

b)

Physical

42.

What type of change has occurred?

a)

Chemical

b)

Physical

43.

Which is a good example of a hypothesis for the following scientific question, "Does playing violent video games lead to higher blood pressure?"

a)

Playing violent video games gives people higher blood pressure.

b)

If you have higher blood pressure, then you play violent video games.

c)

If you play violent video games you will have higher blood pressure.

d)

If you play violent video games, then you will have higher blood pressure.

44.

Why is the following considered a bad hypothesis? "If your plants grew taller, then they were given fertilizer."

a)

It doesn't have "if" and "then"

b)

The prediction is wrong

c)

The independent and dependent variable are in the wrong order

d)

This is a good hypothesis

45.

Jennifer wants to know if students do better on their homework if they listen to classical music or hip hop music. What is the independent variable in this experiment?

a)

Students' grades on homework

b)

The age of the students

c)

The volume of the music

d)

The type of music

46.

A dependent variable is __________.

a)

What is measured in an experiment

b)

What you change in an experiment

c)

A prediction about an experiment

d)

What stays the same in an experiment

47.
A testable prediction about a scientific investigation is a(n)
a)
Question
b)
Observation
c)
Hypothesis
d)
Experiment
48.

How many independent variables should you have in an experiment?

a)

two

b)

as many as possible

c)

four

d)

one

49.

The variable that is being measured or observed is called the _______________. Hint: this is the variable that is the result or effect

a)

independent variable

b)

dependent variable

c)

control variable

50.

What is a constant/control in an experiment?

a)

Things that do not change in a experiment. It's the variable that stays the same. You can have many variables stay the same.

b)

It's the variables that the scientist changes in the experiment

c)

It's the variables that are being measured in an experiment

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