Earth Science Practice Benchmark

The summary at the end of an experiment that explains the results is... 

• conclusion
• procedures
• materials
• responding variable

A testable prediction about a scientific investigation is a(n)

• Question
• Observation
• Hypothesis
• Experiment

Stephen predicted that seeds would start to grow faster if an electric current traveled through the soil in which they were planted.

• recognize a problem
• test the hypothesis with an experiment
• form a hypothesis
• draw conclusions  

Susan said, “If I fertilize my geranium plants, then they will have more flowers.”

• recognize a problem

• test the hypothesis with an experiment

• form a hypothesis

• draw conclusions

Bob read about growing plants in water. He wanted to know how plants could grow without soil.

• coming up with a question

• test the hypothesis with an experiment

• form a hypothesis

• draw conclusions

Information you obtain through your senses, such as touch, sound and sight.

• observation
• hypothesis
• question
• conclusion

A prediction or guess based on observations.

• data
• scientific process
• hypothesis
• question

What is the last step of scientific method?

• hypothesis

• observe

• communicate

• question

A series of steps used by scientists to solve a problem or answer a question. 

• scientific method
• recipe
• data collection
• metric system

Sarah is bringing treats to her elementary school class on her birthday. The number of treats she brings in is based on the number of students in her class.
t = the number of treats
s = the number of students
Which of the variables is independent?

• s = the number of students
• t = the number of treats