WorksheetsChemistry Test
Total questions: 25
Worksheet time: 56mins
1. What skill is a scientist using when she listens to the sounds that whales makes?
A) making a hypothesis
B) drawing conclusions
C) making observations
D) interpreting data
2. What is the correct order of the steps in the scientific method?
A) Ask a question, make a hypothesis, test hypothesis, draw conclusions, analyze results, communicate results.
B) Ask questions, make a hypothesis, test the hypothesis, analyze results, draw conclusions, communicate results.
C) Make a hypothesis, test the hypothesis, analyze the results, ask a question, draw conclusions, communicate results.
D) Ask a question, analyze results, make a hypothesis, test the hypothesis, draw conclusions, communicate results.
3. Which question would be the best high level scientific question?
A) How many giraffes live in Africa?
B) How long ago did dinosaurs live on the Earth?
C) Does the amount of salt in water affect the temperature at which it boils?
D) Who made the first microscope?
4. Which of the following is NOT a rule when writing a hypothesis?
A) it should restate the question
B) It is an if/then statement
C) It is a prediction.
D) It is testable
5. An experiment that tests only one factor at a time by using a comparison of a control group and an experimental group is?
A) a controlled experiment
B) a theory
C) an independent variable
D) a dependent variable
6. Which of the following hypotheses is written correctly?
A) If I freeze a tennis ball, then it will not bounce as high.
B) If a tennis ball is frozen, it won't bounce as high as one that is not frozen.
C) Frozen tennis balls will not bounce as high.
D) If I heat up a tennis ball it will bounce high.
7. The process of obtaining information by using the senses is called a/an
A) conclusion
B) scientific method
C) observation
D) inquiry
8. A series of steps designed to help you solve problems and answer questions
A) observation
B) scientific method
C) hypothesis
D) experiment
9. In an experiment, the one variable that is changed is called the
A) independent variable
B) dependent variable
C) experimental variable
D) controlled variable
10. In an experiment, the factor that we measure is called the
A) dependent variable
B) conclusion
C) controlled variable
D) independent variable
11. A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is
A) the temperature
B) the incubator
C) the male alligators
D) the gender of the alligator
12. A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The dependent variable is
A) the gender of the baby alligators
B) the incubator
C) the size of the baby alligators
D) the temperature
13. A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water. In this experiment the independent variable is
A) the water
B) the number of plants in the water
C) the temperature of the water
D) the amount of salt in the water
14. A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water. In this experiment the dependent variable is
A) the temperature of the water
B) the number of plants in the water
C) the amount of salt in the water
D) the water
15. All the things in an experiment that must be the same to make it fair are called
A) controlled variables or constants
B) dependent variables
C) controlled experiments
D) independent variables
How many significant figures does 0.023 have?
1
2
3
4
How many sig figs does 91010 have?
2
3
4
5
How many sig figs does 9.0 x 10-3 have?
1
2
3
-3
How many sig figs does 780. have?
1
2
3
0
Do the math and place you answers in the correct number of sig figs 2.15 x 3.1 x 100 =
Do the math and place your answers in the correct number of sig figs 42.828 + 67.4629
Do the math and place your answer in the correct number of sig figs 334.54 + 198.
Do the math and then place your answer in the correct number of sig figs 450 / 114.
What is the correct way to write out 3.4 x 104 when removing it from scientific notation?
What is the correct way to write out 9.010 x 10-2 when removing it from scientific notation?
