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Semester 1 Review

Total questions: 109

Worksheet time: 53mins

Name
Class
Date
1.
A study was done to see if different tire treads affect the braking distance of a car.
What is the dependent variable?
a)
Tire treads
b)
Braking distance
c)
Road conditions
d)
Model of car
2.
The time it takes to run a mile depends on the person's running speed.
What is the independent variable?
a)
Running speed
b)
Time
c)
Running style
d)
Who is the runner
3.
The height of a bean plant depends on the amount of water it receives.
What would you graph on the Y axis from this statement?
a)
Height of a bean plant
b)
Amount of water 
c)
Type of plant
d)
Life span of a bean plant
4.
The amount of time that water takes to boil will change with the volume of water.  
What would you graph on the X axis for the above statement?
a)
Boiling temperature
b)
Amount of water
c)
Time
d)
Flavor of ramen noodles
5.

What is the dependent variable?

a)

Hours is the dependent variable

b)

Number of E. Coli Bacteria is the dependent variable

6.

What is the independent variable?

a)

Hours is the independent variable

b)

Number of E. Coli Bacteria is the independent variable

7.
Mr. Krabs gave 50 people in Grp A a new mint to eat 2 hrs after eating Krabby patties.  He gave 50 people in Grp B a regular mint to eat 2 hrs after eating Krabby patties.  Then he asked each person if he/she had bad breath.  Which people are in the control group?
a)
Group A
b)
Group B
8.
Based on the graph, what is the dependent variable being recorded?
a)
Day
b)
Degees in Fahrenheit
9.

Does the type of ball affect the bouncing height?

Which hypothesis is correct?

a)

If the subject bounces a ping pong ball, then the ping pong ball will bounce the highest.

b)

We use a big ball, the ball will bounce really high.

c)

She can use a basketball, then the ball will bounce the lowest.

d)

The subject uses a bowling ball, the bowling ball will bounce the lowest.

10.
Which statement is true about the given scatter plot?
a)
It has positive association because all of the points have positive coordinates
b)
It has negative association because the practice length is always less than the number of baseballs in the cart.
c)
It has positive association becouse the points on the graph go towards 50.
d)
It has negative association because as the practice length increases the number of baseballs decreases.
11.
Frank has an eraser. It has a mass of 4g, and a volume of 2cm3. What is its density?
a)
8 g/cm3
b)
2 g/cm3
c)
1/2 g/cm3
d)
24 g/cm3
12.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
13.

If an object has a density of 0.6 g/cm3 and you put it into water, will it sink or float?

a)

sink

b)

float

14.
It is a measure of how close measurements come to each other when they are made in the same way
a)
Accuracy
b)
Precision
c)
Error
d)
Extrapolation
15.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
16.

A possible explanation to a problem that has not yet been tested.

a)

data

b)

theory

c)

hypothesis

d)

fact

17.
The summary at the end of an experiment that explains the results. 
a)
conclusion
b)
procedures
c)
materials
d)
responding variable
18.

What is an observation?

a)

A scientific statement based on ideas

b)

Using your senses to notice what is going on around you

c)

To be unaware of your surroundings

d)

The question that you want an answer to.

19.
A testable answer to a scientific question
a)
Question
b)
Observation
c)
Hypothesis
d)
Experiment
20.
A hypothesis is simply a prediction that has not yet been _.
a)
proven or disproven
b)
made into a theory
c)
results calculated
d)
written about
21.
Should experiments be repeated over and over to see if the results are the same each time?
a)
yes
b)
no
22.
Testing a hypothesis often involves a(n):
a)
answer
b)
experiment
c)
problem
d)
safety check
23.

Observations made during an experiment are called:

a)

data

b)

problems

c)

conclusions

d)

questions

24.

A scientific observation is:

a)

Based on facts

b)

based on your personal beliefs

c)

Based on opinions

d)

Based on a rumor you heard in the bathroom

25.

Which of the following is NOT a testable question?

a)

How do rockets work?

b)

Does fertilizer help plants grow bigger?

c)

Does heart rate increase with exercise?

d)

Does the freezing point of water change at different elevations?

26.

It must be summer.

a)

Qualitative Observation

b)

Quantitative Observation

c)

Opinion

d)

Inference

27.

The table top is smooth.

a)

Qualitative Observation

b)

Quantitative Observation

c)

Hypothesis

d)

Inference

28.

The penguin got pushed in.

a)

Qualitative Observation

b)

Inference

c)

Quantitative Observation

d)

Hypothesis

29.

The penguins are black and white.

a)

Qualitative Observation

b)

Inference

c)

Hypothesis

d)

Quantitative Observation

30.

These kind of observations are made using instruments such as rulers, balances and thermometers.

a)

Qualitative Observations

b)

Quantitative Observations

c)

Scientific Observations

d)

Measured Observations

31.

There are 29 students in the classroom.

a)

quantitative observation

b)

qualitative observation

c)

inference

d)

hypothesis

32.

The speed of the car is 55 mph.

a)

Qualitative Observation

b)

Quantitative Observation

c)

Hypothesis

d)

Inference

33.

The boy is probably sad...

a)

Qualitative Observation

b)

Hypothesis

c)

Inference

d)

Quantitative Observation

34.

Which statement is an inference about this picture?

a)

The van is tan.

b)

The van is inside the KFC.

c)

The wall is broken.

d)

Someone has already called 911.

35.

Using observations to make a logical theory or good guess.

a)

Observation

b)

Inference

c)

Measuring

d)

Qualitative Observation

36.

Using any of your 5 senses to describe the world around you.

a)

Observation

b)

Inference

c)

Quantitative Observation

d)

Logical Theory

37.

A student recorded how many commercials she saw in one week. Her results are recorded above. What can you you infer?

a)

The tv shows lasted longer on Monday.

b)

She watched more tv on Monday.

c)

The tv shows didn't last as long as usual on Monday.

d)

She watched less tv on Monday.

38.
What two types of measurements make up DENSITY? 
a)
Mass and Volume
b)
Temperature and Mass
c)
Grams and Centimeters
d)
Volume and Weight
39.
Look at this image.  Which object has the LOWEST density in water? How? 
a)
The Ping Pong Ball because it floats to the top 
b)
The bolt because it has sunk to the bottom
c)
The soda cap because it is not just full of air like the Ping Pong ball
40.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
41.
Why do the liquids form different layers?
a)
They have different densities.  
b)
They have different masses.  
c)
They have different volumes.  
d)
They are different temperatures.  
42.
If an object has a density of .6 g/mL and you put it into water, will it sink or float?  
a)
sink
b)
float
43.
If an object has a density of 3.6 g/mL and you put it into water, will it sink or float?  
a)
sink
b)
float
44.
What number is the metric system based?
a)
10
b)
20
c)
1
d)
100
45.
The base unit of metric length.
a)
Meter
b)
Liter 
c)
Gram
d)
Metric
46.
What is the mass reading on the triple beam balance?
a)
336.8 g
b)
336.8 m
c)
306.8 g
d)
306.8 m
47.
What is the reading at point A?
a)
1.5 cm
b)
1.5 mm
48.

Why do we need controls in an experiment?

a)

To make it challenging

b)

To collect data

c)

To make it fair and accurate

d)

To make it interesting

49.

A description of a pattern or an event in nature that is always true

a)

Scientific Theory

b)

Scientific Law

c)

Hypothesis

d)

Critical Thinking

50.

Oh no! You dropped a beaker and it broke! What should you do next?

a)

Cry

b)

tell the teacher

c)

sweep it up

d)

tell your lab group

51.

variable that is graphed on the x-axis of a graph

a)

control variable

b)

independent variable

c)

dependent variable

d)

experiment

52.

variable that is graphed on the y-axis

a)

experimental variable

b)

independent variable

c)

dependent variable

d)

controlled variable

53.

variable that is changed by the experimenter

a)

independent variable

b)

dependent variable

c)

control variable

d)

experiment

54.

Mariah is trying out different types of markers to see which will produce the brightest colors. Which is the dependent variable?

a)

the type of marker

b)

brightness of the colors

55.

What is the independent variable/manipulated variable?

a)

Cost of Pizza

b)

Number of Pizza Toppings

c)

Same Pizza Place

56.

What is the dependent variable?

a)

Cost of Pizza

b)

Number of Pizza Toppings

c)

Same Pizza Place

57.

Heat transfer occurs

a)

in many directions.

b)

both from warm objects to colder ones and from cold objects to warmer ones.

c)

only from warm objects to colder ones.

d)

only from cold objects to warmer ones

58.

The sun’s rays are the MOST direct

a)

near the poles.

b)

near the equator.

c)

at high altitudes.

d)

far from the ocean.

59.

The atmosphere is

a)

the layer in which weather occurs.

b)

the layer that contains the ozone layer.

c)

the layer of water in the oceans.

d)

the layer of gases that surrounds Earth.

60.

Earth’s atmosphere is important to living things because it

a)

contains dust and other particles.

b)

is very thin compared to the size of Earth.

c)

provides all the gases that living things need to survive.

d)

maintains a constant relative humidity.

61.

What is the formula for density?

a)

Density = mass/volume

b)

Density = volume/mass

c)

Density = mass x volume

d)

Density = mass + volume

62.

As you rise upwards in the atmosphere, air pressure

a)

increases.

b)

decreases.

c)

doesn’t change.

d)

first increases, then decreases.

63.

From Earth to space, the main layers in our atmosphere are:

a)

troposphere, stratosphere, mesosphere, thermosphere.

b)

stratosphere, troposphere, mesosphere, thermosphere.

c)

mesosphere, troposphere, stratosphere, thermosphere.

d)

thermosphere, troposphere, stratosphere, mesosphere.

64.

The layer of our atmosphere in which weather occurs is the

a)

troposphere.

b)

stratosphere.

c)

mesosphere.

d)

exosphere.

65.

The greenhouse effect is

a)

the absorption of energy by clouds.

b)

a gradual increase in the temperature of the atmosphere.

c)

the reflection of solar energy into the atmosphere.

d)

the process by which gases hold heat in the atmosphere.

66.

Heat from the sun reaches you by

a)

conduction.

b)

light emission.

c)

convection.

d)

radiation.

67.

Most of the heating of the troposphere comes from

a)

conduction.

b)

condensation.

c)

convection.

d)

radiation.

68.

Convection currents in the atmosphere takes place because

a)

warm air is more dense than humid air.

b)

warm and cold air have the same density.

c)

cold air is less dense than warm air.

d)

cold air is more dense than warm air.

69.

Winds are caused by differences in

a)

precipitation.

b)

humidity.

c)

air pressure.

d)

turbulence.

70.

Earth’s rotation makes global winds curve. This is called the

a)

Convection effect.

b)

Global effect.

c)

Coriolis effect.

d)

Rotational effect.

71.

Large clouds that often produce thunderstorms are called

a)

stratus clouds.

b)

cumulonimbus clouds.

c)

cirrus clouds.

d)

nimbostratus clouds.

72.

Which of the following sources of weather data would enable a meteorologist to follow the path of an approaching thunderstorm?

a)

a chart of data from nearby weather stations

b)

Doppler radar

c)

a network of aneroid barometers

d)

weather balloons

73.

When Earth receives energy from the Sun, ____.

a)

some energy is reflected back into space

b)

some is absorbed by the atmosphere

c)

some is absorbed by land and water on Earth's surface

d)

all of the above

74.

The flow of air caused by ____ and the Coriolis effect creates distinct wind patterns on Earth's surface.

a)

differences in heating

b)

the ozone layer

c)

magnetic fields

d)

the jet streams

75.

Air above the equator is heated more than at any other place on Earth because solar rays strike the equator ____.

a)

at a 180° angle

b)

at a 45° angle

c)

more directly

d)

less directly

76.

A(n) ____ is a large body of air that has the same properties as the Earth's surface over which it develops.

a)

air mass

b)

cloud

c)

tornado

d)

front

77.

The interaction of air, water, and ____ causes weather.

a)

the Sun

b)

humidity

c)

land

d)

wind

78.

Structures like the pyramids of Egypt have been harmed by the effects of ____.

a)

chlorofluorocarbons

b)

carbon monoxide

c)

ozone

d)

acid rain

79.

What is climate?

a)

What's going on with the atmosphere at any particular time.

b)

How much sunshine an area gets.

c)

The type of weather that occurs during a particular season.

d)

An area's pattern of weather over a long period of time.

80.

The diagram represents a beaker of water being heated by a flame. The arrows represent heat transfer occurring in the beaker.

Which process is represented by the arrows in the diagram?

a)

Conduction

b)

Convection

c)

Radiation

d)

Soup

81.

The Law of Conservation of Energy states that energy cannot be created or destroyed, but energy can change

a)

its total mass

b)

from one form to another

c)

its total volume

d)

from one state of matter to another

82.

The arrows in the diagram show the circulation of air on a sunny day.

The air circulation shown is caused by

a)

both hot air and cool air sinking

b)

both hot air and cool air rising

c)

hot air sinking and cool air rising

d)

hot air rising and cool air sinking

83.

The naturally occurring ozone layer shields Earth from

a)

aliens

b)

x-rays

c)

magnetic forces

d)

UV radiation

84.

Which of the following does NOT have an affect on a region's climate?

a)

longitude

b)

latitude

c)

mountains

d)

large bodies of water (ex. ocean)

85.

When the sun's rays pass through our atmosphere and then heat is trapped by the atmosphere it is called

a)

Ice Age

b)

Greenland effect

c)

Global Warming

d)

Greenhouse effect

86.
What symbol is this?
a)
warm front
b)
cold front
c)
stationary front
d)
occluded front
87.

What causes warm air to rise?

a)

it's less dense than cold air

b)

it weighs more than cold air

c)

it has higher pressure than cold air

d)

its more dense than cold air

88.

Which statement correctly defines wind?

a)

The movement of air from areas of low pressure to areas of high pressure

b)

The movement of air to a colder area in the atmosphere.

c)

The movement of air from areas of high pressure to areas of low pressure.

d)

The movement of air pushed around and bouncing off Earth's surface.

89.

What is the jet stream?

a)

Football flying over the Earth

b)

Strong winds above the Earth's surface

c)

Weather over a long period of time

d)

Clouds that form from jet plane exhaust

90.

How does the jet stream affect the weather?

a)

The jet stream brings only bad weather.

b)

The jet stream releases oxygen so we can breathe.

c)

The jet stream does not affect the weather.

d)

The jet stream transports weather systems that affect us.

91.

Which of the following has kinetic energy?

a)

a rock poised for a fall

b)

a rolling bowling ball

c)

an archer’s bow that is drawn back

d)

a car waiting at a red light

92.

Climates are classified according to two major factors:

a)

elevation and precipitation.

b)

elevation and latitude.

c)

latitude and temperature.

d)

precipitation and temperature.

93.

Unlike kinetic energy, potential energy is

a)

stored.

b)

energy of motion.

c)

conserved.

d)

not measurable

94.

When a roller coaster is at the top of a hill it has

a)

high potential energy

b)

high kinetic energy

c)

low potential energy

d)

equal amounts of kinetic and potential energy

95.

When a roller coaster is at the bottom of a hill it has

a)

high potential energy

b)

high kinetic energy

c)

low kinetic energy

d)

equal amounts of kinetic and potential energy

96.

Which passenger has the most potential energy?

a)

A

b)

B

c)

C

d)

D

97.

Conservation of energy means that

a)

energy can be created but not destroyed

b)

energy can be destroyed but not created

c)

energy can both be created and destroyed

d)

energy can neither be created nor destroyed

98.

Complete the following sentence. The ________________ an object moves, the more ____________________ energy it has.

a)

slower ... potential

b)

faster .... kinetic

c)

faster ... potential

d)

slower ... kinetic

99.

Write the equation of the line parallel to y = 4x + 3 and passing through the point (-4, -5)

a)

y = -1/4x - 6

b)

y = -1/4x + 8

c)

y = 4x - 2

d)

y = 4x + 11

100.

What is the energy source that drives the water cycle?

a)

The moon T

b)

The heat from our home in the winter all around the world

c)

The sun

d)

he heat generated solely from the core of the earth

101.

The mixture of gases that surround the earth. ____________________

a)

Landforms

b)

Sun

c)

Atmosphere

d)

Weathering

102.

The process where plants absorb water through the roots and then give off water vapor through pores in their leaves. __________________________

a)

Transpiration

b)

Condensation

c)

Evaporation

d)

Precipitation

103.

The fall of water, ice, or snow deposited on the surface of the Earth from the atmosphere. __________

a)

Condensation

b)

Evaporation

c)

Precipitation

d)

Transpiration

104.

The draining away of water from the surface of an area of land. _________________

a)

Density

b)

Hydrologic cycle

c)

Sun

d)

Runoff

105.

What is precipitation?

a)

Sweat from our bodies on hot days

b)

Gas that we use in furnaces or ovens

c)

Any form of water that falls from the sky

d)

Warm rain but not cold snow or sleet

106.

What is formed when water vapor condenses?

a)

Clouds

b)

Transpiration

c)

Valleys

d)

Mountains

107.

What phase of the water cycle is #4?

a)

Evaporation

b)

condensation

c)

precipitation

d)

runoff

108.

What phase is #6

a)

Evaporation

b)

Precipitation

c)

runoff

d)

infiltration

109.

What phase is #8?

a)

Infiltration

b)

ground water

c)

runoff

d)

evaporation

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