WorksheetsFinal Exam: Part 1 Review
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
Ms. Gordon is testing what type of candy the middle school likes best. She buys three types of candy and asks the students to choose their favorite type out of a bowl.
1.What is an example of a hypothesis for Ms. Gordon’s experiment?
a)
The chocolate candy was liked the best
b)
If more students choose chocolate candy, then the middle school likes chocolate the best
2.
Ms. Gordon is testing what type of candy the middle school likes best. She buys three types of candy and asks the students to choose their favorite type out of a bowl.
2.What is an example of a conclusion for Ms. Gordon’s experiment?
a)
A graph showing the amount of candy chosen
b)
Which candy do middle school students like best?
3.
3.Kemiyah conducted an experiment. She then created a bar graph representing her results. What step of the scientific method is she doing?
a)
Making a hypothesis
b)
Analyze
4.
4.The variable that might be affected by change made to the independent variable is:
a)
Dependent Variable
b)
Control Variable
5.
5.Tyiesha is conducting an experiment on the middle school. She wants to ensure that her data is the most reliable. Which of the following will give the most reliable results?
a)
Taking 20 samples and reporting all of the results.
b)
Taking 20 samples and reporting only the ones that give the most favorable results.
6.
6.Identify the independent variable in the hypothesis: if the water is warm then the rate at which the sugar dissolves in the water will be faster, because warm water can dissolve molecules quicker.
a)
Rate at which the water dissolves
b)
Water’s temperature
7.
7.Spongebob set up an experiment. He made two types of cookies and determined which his friends liked better. What was the question he was trying to answer?
a)
How do you make cookies?
b)
What cookies taste the best?
8.
8.The thing in a scientific investigation that is changed on purpose is called the:
a)
Dependent variable
b)
Independent variable
9.
9.Ms. Griggs has a hypothesis: if students spend more time on APEX, then they will do better on their state tests. In order to prove her hypothesis, what should she do?
a)
Conduct an experiment
b)
Make a guess
10.
10.SpongeBob conducted an experiment in order to test how to clean his pants. He washed two pair of pants three times. For one pair of pants he used warm water, and the other pair of pants he used Clean-O detergent. He then dried the pants for 1 hour. Which of the following lists the CONSTANTS in the experiment?
a)
The cleanliness of the pants, the type of detergent and the type of water
b)
The amount of time he washes the pants and the amount of time he dries the pants
11.
11.If a scientist has a bias, how can it affect the experiment:
a)
It may affect how the scientist interprets the data
b)
The scientists prediction will be correct
12.
12.Riheim wants to conduct a good experiment. In order to do so, he should only change the .
a)
Independent Variable
b)
Manual
13.
7th Graders were asked to do an experiment on which type of food their three pet turtles like best. The turtles were fed at 8am and at 3pm everyday. First they fed each turtle the same type of food for a week, and measured how much food was left over the next day. Then they fed each turtle a different type of food for a week and would measure how much food was left over the next day.
13.What question are the 7th graders trying to answer?
a)
How many different types of turtle food exist
b)
What type of food turtles like best
14.
7th Graders were asked to do an experiment on which type of food their three pet turtles like best. The turtles were fed at 8am and at 3pm everyday. First they fed each turtle the same type of food for a week, and measured how much food was left over the next day. Then they fed each turtle a different type of food for a week and would measure how much food was left over the next day.
14.Identify the independent variable in the experiment
a)
The type of food
b)
The time of day they were fed
15.
7th Graders were asked to do an experiment on which type of food their three pet turtles like best. The turtles were fed at 8am and at 3pm everyday. First they fed each turtle the same type of food for a week, and measured how much food was left over the next day. Then they fed each turtle a different type of food for a week and would measure how much food was left over the next day.
15.Identify the dependent variable in the experiment
a)
The type of food
b)
How much food the turtles ate
16.
7th Graders were asked to do an experiment on which type of food their three pet turtles like best. The turtles were fed at 8am and at 3pm everyday. First they fed each turtle the same type of food for a week, and measured how much food was left over the next day. Then they fed each turtle a different type of food for a week and would measure how much food was left over the next day.
16.Identify the control variable in the experiment
a)
The type of food
b)
How much food the turtles ate
17.
17. If you do not understand a direction or part of a lab procedure, you should
a)
figure it out as you do the lab.
b)
try several methods until something works.
c)
ask the instructor before proceeding.
d)
skip it and go on to the next part.
18.
18. If a laboratory fire erupts, immediately
a)
notify your instructor.
b)
run for the fire extinguisher.
c)
throw water on the fire.
d)
open the windows.
19.
19. Approved eye protection devices (such as goggles) are worn in the laboratory
a)
to avoid eye strain.
b)
to improve your vision.
c)
only if you don’t have corrective glasses.
d)
any time chemicals, heat or glassware are used.
20.
20. You are heating a substance in a test tube. Always point the open end of the tube
a)
toward yourself.
b)
toward your lab partner.
c)
toward another classmate.
d)
away from all people.
21.
21. You have been injured in the laboratory (cut, burn, etc.). First you should
a)
visit the school nurse after class.
b)
see a doctor after school.
c)
tell the science instructor at once.
d)
apply first aid yourself.
22.
22. When gathering glassware and equipment for an experiment, you should
a)
read all directions carefully to know what equipment is necessary.
b)
examine all glassware to check for chips or cracks.
c)
clean any glassware that appears dirty.
d)
All of the above.
23.
23. In a laboratory, the following should NOT be worn.
a)
loose clothing.
b)
dangling jewelry.
c)
sandals.
d)
All of the above.
24.
24. If an acid is splashed on your skin, wash at once with
a)
soap.
b)
oil.
c)
weak base.
d)
plenty of water.
25.
25. When you finish working with chemicals, biological specimens, and other lab substances, always
a)
treat your hands with skin lotion.
b)
wash your hands thoroughly with soap and water.
c)
wipe your hands on a towel.
d)
wipe your hands on your clothes.
100 %
