Science Quiz

All the things in an experiment that must be the same to make it fair are called

• controlled variables or constants

• independent variables

• controlled experiments

• dependent variables

In science, an educated guess is called a/an

• question

• observation

• hypothesis

• conclusion

When you decide whether or not the data supports the original hypothesis, you are

• making observations

• drawing conclusions

• asking questions

• forming a hypothesis

What is the correct order of the steps in the scientific method?

• Make a hypothesis, test the hypothesis, analyze the results, ask a question, draw conclusions, communicate results.

• Ask a question, analyze results, make a hypothesis, test the hypothesis, draw conclusions, communicate results.

• Ask a question, make a hypothesis, test hypothesis, draw conclusions, analyze results, communicate results.

• Ask questions, make a hypothesis, test the hypothesis, analyze results, draw conclusions, communicate results.

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

• the number of plants in the water

• the amount of salt in the water

• the temperature of the water

• the water

Which of the following hypotheses is written correctly?

• Frozen tennis balls will not bounce as high.

• If I freeze a tennis ball, then it will not bounce as high.

• If a tennis ball is frozen, it won't bounce as high as one that is not frozen.

• If I heat up a tennis ball it will bounce high.

A series of steps designed to help you solve problems and answer questions

• scientific method

• hypothesis

• experiment

• observation

An experiment that tests only one factor at a time by using a comparison of a control group and an experimental group is?

• an independent variable

• a dependent variable

• a controlled experiment

• a theory

In an experiment, the factor that we measure is called the

• dependent variable

• independent variable

• controlled variable

• conclusion

A scientist hypothesizes that the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is

• the temperature

• the male alligators

• the gender of the alligator

• the incubator