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Worksheets

August - October Review

Total questions: 114

Worksheet time: 4hrs 38mins

Name
Class
Date
1.
Waldriana would like to investigate the effect of temperature on the amount of food birds eat.  What should she do first to begin her investigation?
a)
develop a question 
b)
conduct background research
c)
design an experiment
d)
come up with a theory
2.
Rigoberto writes down his hypothesis that more salt will dissolve in cold water than in warm water.  He adds salt to different temperatures of water and records his observations including the amount of undissolved salt.  He finds that there is more salt dissolved in warm water than cold water.  What should Rigoberto do next to make sure that his conclusion is valid?
a)
do another investigation with sugar
b)
repeat his investigation using a different liquid than water
c)
repeat his investigation to see if his results are the same
d)
change his results to match his original hypothesis
3.
Which question would be best to answer using a scientific investigation?  
a)
Why are people afraid during thunderstorms?
b)
How easy is it to shovel snow?
c)
Are some clouds prettier than others?
d)
Does temperature affect the amount of rain?
4.
Scientists who study hurricanes sometimes fly into the hurricanes to take readings from inside the storm.  How does this differ from most scientific research?
a)
Hurricane scientists cannot control variables.
b)
Hurricane scientists cannot collect data.
c)
Hurricane scientists cannot draw conclusions.
d)
Hurricane scientists cannot make hypotheses.
5.
A group of people trained to climb a mountain.  As they practices in high altitudes, a researcher measured changes in their lung strength.  Why is it important that her study has a control group?
a)
O  to ensure that everyone in the group was strong enough to climb a mountain
b)
to test equipment for measuring lung strength
c)
to share her research with as many people as possible
d)
to compare typical lung strength with the effects of training
6.
Austin is studying states of matter by heating water in a pan.  Which statement from his notebook is an observation?
a)
It is hard to estimate the size of the bubbles.
b)
Tiny bubbles form on the bottom of the pan.
c)
The bottom of the pan must be very hot.
d)
I think there is air in the bubbles.
7.
How many variables should be changed in a simple experiment?
a)
5
b)
3
c)
1
d)
6
8.
A scientist says that she has made an important discovery about sound waves.  What needs to happen for most other scientists to accept her results?
a)
The scientist has to explain her results to other scientists.
b)
Many scientists need to review the results.
c)
The scientist needs to publish her results in a journals.
d)
Other scientists need to be able to get the same results.
9.
Jaylynn says a baseball and a basketball will fall at the same speed.  Her friend disagrees.  Which of these is the best way for them to find out?
a)
drop both balls from a high place and compare how fast they fall
b)
ask an adult which one is right
c)
explain their reasons to each other
d)
ask twenty different people on the playgroup what they think
10.
Alejandro wanted to find out which of his friends was the strongest.  He asked each of his friends to come to his lab three different times and lift some weights.  Alejandro wrote down how much weight each person could lift.  How was his investigation different from an experiment?
a)
Alejandro did not test a hypothesis
b)
Alejandro did not make any observations
c)
Alejandro did not repeat his tests.
d)
Alejandro did not collect any data.
11.
Amanda makes the following hypothesis:  If the humidity increases, it will help plants grow.  Which of these describes a controlled experiment that would best help Amanda prove or disprove her hypothesis?
a)
recording the number of tall plants and short plants in different fields that have different humidity levels
b)
observing plant growth in a greenhouse with a constant humidity and in a greenhouse with changing humidity
c)
O  measuring the temperatures and humidity in a greenhouse that has both short and tall plants growing in it
d)
O  making a model to observe whether water collects on the walls of a greenhouse with increasing humidity
12.
Scientists are studying how bears kept in zoos behave.  Which of these would be the best control group?
a)
bears in the wild
b)
bears kept as pets
c)
other animals in zoos
d)
other animals in the wild
13.
What would be the best way to collect data on the average age of a large population?
a)
review government records
b)
ask people their ages
c)
check newspapers for birth announcements
d)
estimate ages by looking at large groups of people
14.
A scientist wanted to find out if a species of bird became extinct after a species of snake was brought to that area.  She studied the data that other scientists had collected and discovered that the bird species probably went extinct because of the snakes.  What step of the scientific investigation did the scientist not do?
a)
She did not do any research.
b)
She did not have a hypothesis.
c)
She did not conduct a test.
15.
1.  Why is it important to have a control in an investigation?
a)
Controls are used to show that different results are caused by changing the variable.
b)
Without controls, it is not possible to make a hypothesis.
c)
A control helps us to predict.
d)
Controls are the answer to the investigative question.
16.
A valid scientific investigation must be able to be 
a)
graphed.
b)
predicted.
c)
replicated (which means repeated)
d)
observed.
17.
Which would be the best source of information for a scientist?
a)
a TV program
b)
a book review
c)
a newspaper article
d)
an article in a science journal
18.
A scientist tested an exercise machine.  He had two groups of volunteers.  Group A exercised every day for a month.  Group B did not exercise.  He made the table below to compare their muscle strength over 30 days. What is Group B’s role in the scientist’s investigation?
a)
Group B's role is the variable.
b)
Group B's role is the control group.
19.
Why was Group B’s role important to the investigation?
a)
It is important so you have something to compare your test results to.
b)
It is important because a scientist must have control.
20.
Jonathan and Renier dropped a rubber ball from the same height onto six different surfaces.  They measured the height of each bounce and recorded their data.  The graph shows their data.  Based on the data, which of the following is the best conclusion?
a)
All balls bounce higher indoors than they do outdoors.
b)
The surface has no affect on the height of the bounce.
c)
A rubber ball does not bounce as high as a super ball.
d)
A rubber ball bounces higher on harder surfaces.
21.
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
22.
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, what are the controlled variables?
a)
Type of plant, amount of music, and sunlight
b)
Water, apple juice, milk
c)
Plant growth
23.
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, what is the dependent variable?
a)
Type of plant
b)
Water, apple juice, milk
c)
Plant growth
24.
The variable that is being tested or changed
a)
independent variable
b)
dependent variable
c)
control variable
25.
The variable that is being measured
a)
independent variable
b)
dependent variable
c)
control variable
26.
Scientific Question:  Does playing video games improve reaction time?
What is the dependent variable?
a)
playing video games
b)
reaction time
c)
type of video game
27.
Scientific Question:  Does playing video games improve reaction time?
What is the independent variable?
a)
playing video games
b)
reaction time
c)
type of video game
28.
Mr. S. normally uses praise as a reward to train his dog.  He wants to know the best way to train his dog, so he sets up an experiment to find out if there is a better way to get his dog to respond to commands.  Identify the dependent variable.
a)
amount of times the dog follows the command
b)
type of reward
c)
praise
d)
type of dog
29.

A scientific theory may change because

a)

the public doesn't like it

b)

new evidence is found

c)

an important scientist says it isn't true

d)

theories never change

30.

A scientist uses another scientist's procedures to perform the same experiment. This is an example of

a)

pseudoscience

b)

repetition

c)

replication

d)

analyzing data

31.

Using one or more of your senses to gather information is called

a)

Inferring

b)

Observing

c)

Predicting

d)

Hypothesizing

32.

Which of the following best describes repetition?

a)

Repeated trials in your own experiment

b)

Using your five senses to gather information

c)

When an experiment is copied by another person

d)

Explaining an observation you have made

33.

A hypothesis is:

a)

An estimate

b)

A question

c)

An explanation that can be tested

d)

A variable

34.

Read the hypothesis below:

    If you run barefoot, then your speed will increase.

    Which of the following is the independent variable?

a)

Your speed

b)

Running barefoot

c)

The surface you run on

d)

Running

35.

Matt is conducting an experiment on dish soap and has just finished analyzing his data. What will his next step be?

 

 

a)

Share his results

b)

Write a conclusion

c)

Write a hypothesis

d)

Form a question

36.

Cathy is designing an experiment to investigate how the material a cup is made of will affect how long it will keep her drink cold. Which step will increase the accuracy of her results?

a)

Putting some of the cups in the fridge while placing the other cups outside in the sun.

b)

Using a different drink in each cup.

c)

Conducting multiple trials and having other scientists replicate her experiment.

d)

Putting ice in some cups but not in the other cups.

37.

I am conducting an experiment to see how changing the amount of light someone has while studying affects their test scores. In this experiment, which of the following would be the outcome variable?

a)

The students

b)

Test scores

c)

The amount of light

d)

Studying

38.

Which of the following is an explanation for how a natural phenomenon works?

a)

Fact

b)

Hypothesis

c)

Law

d)

Theory

39.

Read the hypothesis below.

     If you drink soda before bed, then it will take you longer to fall asleep.

     Which of the following would be the control group in this experiment?

a)

None of these

b)

The group of participants that do not drink soda before bed.

c)

Both red & green

d)

The group of participants that drink soda before bed.

40.

A hypothesis is only useful if:

a)

It is correct

b)

It can be tested

c)

The result is already know

d)

It is incorrect

41.

Information collected using my 5 senses is known as:

a)

A hypothesis

b)

An observation

c)

An inference

d)

An independent variable

42.

I am conducting an experiment to see how eating carrots affects people’s vision. What would be a possible constant variable between the experimental group and control group?

a)

  Their vision results after completing the experiment

b)

The age of the participants

c)

  The type of carrots they eat

d)

The amount of carrots they eat

43.

Which of the following is the variable that you are measuring?

a)

Test Variable

b)

Outcome variable

c)

Independent variable

d)

Constant variable

44.

You should only share your experimental results if your hypothesis is correct.

a)

True

b)

False

45.

Susan is looking at a cell through a microscope and is trying to find where the DNA is located. Where should Susan look to find the cell's DNA?

a)

The nucleus

b)

The Golgi apparatus

c)

The cell wall

d)

The cell membrane

46.

Which of the following is NOT a characteristic of the Cell Theory developed by Schwann and Virchow?

 

a)

All cells contain a nucleus

b)

All cells come from existing cells

c)

The cell is the basic unit of all organisms

d)

All organisms are made of one or more cells

47.

All unicellular organisms:

a)

Have a nucleus

b)

Are made of only one cell

c)

Are made of multiple cells

d)

Do not have a nucleus

48.

Part of the cell theory states that all living things are made of one or more cells, but scientists had to find ways to test this theory. Which investigation should scientists use to test this part of the cell theory?

a)

Heat plant or animal tissues on a hot plate

b)

Measure the mass of plant or animal tissue

c)

Test plant or animal tissue with a pH meter

d)

Examine plant or animal tissues with a microscope

49.

Which of the following structures do BOTH plant and animal cells have?

a)

Chloroplasts

b)

Cell wall

c)

Mitochondria

d)

Large central vacuole

50.

Which organelle is the site of cellular respiration, the process that uses food to create energy?

a)

Chloroplasts

b)

Cell membrane

c)

Mitochondria

d)

Nucleus

51.

Adam is studying a new type of organism he has found. He observes that the cells of the organism have mitochondria, a cell membrane, and a nucleus. He also observes that the cells do NOT have a cell wall. What type of organism has Adam most likely found?

a)

An animal

b)

A plant

c)

A bacteria

d)

A prokaryote

52.

Which of the following correctly pairs a cellular structure with its function?

a)

Nucleus - protects the cell

b)

Large central vacuole - stores water

c)

Cytoplasm - controls what enters and exits the cell

d)

Mitochondria - stores DNA

53.

Which of the following structures is found in plant cells but NOT animal cells?

a)

Cell membrane

b)

Nucleus

c)

Cell wall

d)

Cytoplasm

54.

Which structure plays the most important role in protecting an animal cell?

a)

Cell membrane

b)

Cell wall

c)

Cytoplasm

d)

Mitochondria

55.

Sarah is a scientist that is trying to identify a mystery organism. She knows that the organism makes its own food using a process called photosynthesis, and it gets energy from that food after completing the process of cellular respiration. Based on the given information, which type of organism is Sarah most likely looking at?

a)

A bird

b)

A dog

c)

A human

d)

A sunflower

56.

What is a benefit of using the 3D cell model instead of the 2D cell model?

a)

It provides a way to understand the concept of the cell.

b)

It provides a more detailed view of a cell's structure.

c)

It shows all the organelles in the cell.

d)

It provides a visual model of the cell.

57.

An archeologist and paleontologist are working on the same dig site. How will their methods of data collection be similar?

a)

Both scientists will use the same tools to collect evidence for analysis and developing scientific explanations.

b)

Both scientists will take samples of evidence from the site to analyze and develop scientific explanations.

c)

Both scientists will use the same computer software to analyze data and develop scientific explanations.

d)

Both scientists will use fossils to develop scientific explanations.

58.

Which of the following correctly lists the products of photosynthesis?

a)

Water, light energy, and carbon dioxide

b)

Carbon dioxide and oxygen

c)

Oxygen and glucose

d)

Water, energy, and carbon dioxide

59.

It took many years and many scientists to create our modern cell theory. Over time, these scientists observed lots of different cells and noted the similarities and differences between them. This led to a lot of improvements in the cell theory, which could not have happened without advancements in technology. Which of the following types of technology played the biggest role in the creation and advancement of the cell theory?

a)

Thermometer

b)

Microscope

c)

Scale

d)

Telescope

60.

Location inside of a plant cell where the process of photosynthesis occurs.

a)

nucleus

b)

mitochondria

c)

chloroplasts

d)

cytoplasm

61.

A gas that plants release during photosynthesis

a)

oxygen

b)

methane

c)

propane

d)

carbon dioxide

62.

A gas that plants take in through small holes in their leaves for the process of photosynthesis.

a)

oxygen

b)

methane

c)

propane

d)

carbon dioxide

63.

A product in photosynthesis

a)

carbon dioxide

b)

oxygen

c)

water

d)

energy

64.

Which of the following are reactants in photosynthesis? Select all that apply.

a)

glucose

b)

oxygen

c)

water

d)

carbon dioxide

65.

Which type of organism would directly benefit from increased levels of carbon dioxide?

a)

human

b)

tree

c)

bird

d)

cat

66.

Which of the following is produced during the process of cellular respiration?

a)

carbon dioxide

b)

glucose

c)

oxygen

d)

sugar

67.

Which statement accurately describes an interaction between plants and animals?

a)

Animals release carbon dioxide, which is required for photosynthesis.

b)

Animals release oxygen, required for photosynthesis.

c)

Plants provide humans with carbon dioxide.

d)

Plants provide humans with light energy.

68.

What are the reactants for photosynthesis?

a)
glucose and oxygen
b)
light, water, and carbon dioxide
c)

oxygen and carbon dioxide

d)

light and water

69.

What is one of the reactants (raw materials) going into cellular respiration?

a)

Energy

b)

Sugar (Glucose)

c)

Carbon dioxide

d)

Water

70.

Which statement about photosynthesis is correct?

a)

Plants get the energy they need for photosynthesis from water.

b)

Plants get the energy they need for photosynthesis from soil.

c)

Plants get the energy they need for photosynthesis from sunlight.

d)

Plants do not require energy to perform photosynthesis.

71.

Which organism(s) go through cellular respiration?

a)

animals only

b)

plants only

c)

both animals and plants

72.

Which organism(s) perform photosynthesis? Select all that apply.

a)

plants

b)

humans

c)

algae

d)

animals

e)

some bacteria

73.

What is the largest level of organization?

a)

Molecule

b)

Cell

c)

Organism

d)

Organ

74.

Which level of organization is made of many cells working together?

a)

Tissue

b)

Organ

c)

Organ system

d)

Molecule

75.

The heart is an example of which level of organization?

a)

Tissue

b)

Organism

c)

Organ

d)

Cell

76.

Many cells work together to form a(n) _______.

a)

Organ

b)

Organism

c)

Atom

d)

Tissue

77.

Which level of organization classifies something as living or nonliving?

a)

Atom

b)

Molecule

c)

Cell

d)

Tissue

78.

Which of the following is a function of the skeletal system? Select all that apply.

a)

Convert food to energy

b)

Movement

c)

Mineral storage

d)

Blood cell production

79.

_____ are a type of connective tissue that connects muscles to bones.

a)

Tendons

b)

Ligaments

c)

Cartilage

d)

Joints

80.

Which structure provides a smooth, cushioned surface at the end of bones?

a)

Ligaments

b)

Tendons

c)

Joints

d)

Cartilage

81.

Besides connecting two bones, what is another function of a ligament?

a)

Allowing movement

b)

Connecting muscles to bones

c)

Cushioning the ends of bones

d)

Pulling on bones to create movement

82.

_____ muscle is found in the heart.

a)

Skeletal

b)

Smooth

c)

Cardiac

d)

Voluntary

83.

Which of the following is an example of involuntary muscle? Select all that apply.

a)

Smooth

b)

Cardiac

c)

Skeletal

84.

Which type of muscle can you control?

a)

Skeletal

b)

Smooth

c)

Cardiac

d)

Involuntary

e)

Voluntary

85.

Internal organs like the intestines are made of ______ muscle.

a)

Cardiac

b)

Skeletal

c)

Smooth

86.

Your hamstring muscle (in your leg) is an example of which type of muscle tissue?

a)

Skeletal

b)

Smooth

c)

Involuntary

d)

Cardiac

87.

What happens when a muscle pulls on a bone?

a)

It relaxes and lengthens

b)

It contracts and shortens

c)

Muscles do not pull on bones

88.

What type of structure is shown here, holding the bones together?

a)

Tendon

b)

Cartilage

c)

Muscle

d)

Ligament

89.

Molly goes to the doctor with stomach pain. Her doctor says the muscle making up her stomach has been damaged. What type of muscle did Molly damage?

a)

Smooth

b)

Skeletal

c)

Cardiac

90.

Which of the following connects your bicep (muscle) to your humerus (bone)?

a)

Ligament

b)

Tendon

c)

Cartilage

d)

Cardiac muscle

91.

What is made up by the combination of multiple cells?

a)

Tissues

b)

Molecules

c)

Atoms

92.

The digestive system is made up of multiple organs, like the stomach, small intestine, and large intestine, that work together to maintain homeostasis. What is the digestive system an example of?

a)

Cells

b)

Atom

c)

Organ system

d)

Organism

93.

Where in the body could you find skeletal muscle?

a)

Stomach

b)

Heart

c)

Bicep

d)

Lungs

94.

How do muscles and bones work together?

a)

Muscles push the bones

b)

Bones pull the muscles

c)

Bones push the muscles

d)

Muscles pull the bones

95.

How many bones does an adult have in their body?

a)

100

b)

206

c)

150

96.

What are organs make up the skeletal system?

a)

muscles

b)

lungs

c)

heart

d)

bones

97.

What are the functions of the muscular system. Select all that apply.

a)

Helps you see

b)

Helps you move

c)

Helps fight diseases

d)

Creates heat

e)

Helps your heart beat

98.

How do pairs of skeletal muscles work together?

a)

One contracts and the other stretches.

b)

While one muscle in the pair contracts, the other returns to its original length.

c)

Both muscles extend at the same time.

d)

One muscle in the pair pulls on a bone, while the second muscle pulls on the first muscle.

99.
The smooth muscle is located 
a)
In the heart 
b)
Bones 
c)
Head 
d)
Within organs 
100.

The skeletal system has several jobs. Select one of the following that describe its jobs.

a)

send messages between the brain and the body

b)

makes red blood cells and stores minerals

c)

creates hormones

d)

carries blood through out the body

101.

Which of the following is NOT a type of muscle?

a)

smooth

b)

rough

c)

cardiac

d)

skeletal

102.

Approximately how many muscles are in our body

a)

600

b)

200

c)

350

d)

12

103.

What is it called where two or more bones connect

a)

Joint

b)

Tendon

c)

ligaments

d)

cartilage

104.

Which part of the skeletal system protects the brain?

a)

pelvis

b)

ribs

c)

scapula

d)

cranium/skull

105.

Which part of the skeletal system protects the heart and lungs?

a)

cranium/skull

b)

pelvis

c)

scapula

d)

ribs

106.

Which part of the skeletal system protects the spinal cord?

a)

pelvis

b)

cranium/skull

c)

vertebra

d)

scapula

107.

The type of involuntary muscle that lines the heart is the ___________ muscle.

a)

skeletal

b)

cardiac

c)

smooth

d)

bicep

108.

This type of voluntary muscle is responsible for the movement of the skeleton.

a)

skeletal

b)

cardiac

c)

smooth

d)

heart

109.

The muscles that line the digestive system are _____________ muscles.

a)

cardiac

b)

skeletal

c)

smooth

d)

intestinal

110.
TRUE or FALSE: Bones are living tissue.
a)
True
b)
False
111.

Check ALL the boxes that describe the function of the Skeletal system.

a)

Gives shape and support

b)

Protects vital organs

c)

Creates blood cells

d)

Stores and produces calcium

e)

Breaks down food

112.

A skull has immovable joints

a)

True

b)

False

113.

All skeletal muscles are voluntary muscles.

a)

True

b)

False

114.

Skeletal muscles _____ and _____to move

a)

contract and relax

b)

contact and reflex

c)

cringe and remove

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