Unit 1 Test Review

Which part of the scientific method is described by the statement below: Jose saw bats catching insects after dark. He asked, "How do bats find the insects in the dark?"

• Recognize a problem/Ask a question

• Form a hypothesis

• Test the hypothesis with an experiment

• Draw conclusions

Which of the following statements is described by the statement below: Scott said, "If acid rain affects plants in a particular lake, then it will affect small animals such as crayfish that live in the same water." (TEKS 1B)

• Recognize a problem/Ask a question

• Form a hypothesis

• Test the hypothesis with an experiment

• Draw conclusions

Which part of the scientific method is described by the statement below: Kim's experiment showed that chicken egg shells were stronger when she gave the hens food which had extra calcium.

• Recognize a problem/Ask a question

• Form a hypothesis

• Test the hypothesis with an experiment

• Draw conclusions

If chicken eat feed that contains extra calcium, then their egg shells will be stronger. What is the independent variable?

• color of egg shells

• strength of egg shells

• amount of calcium

• type of chicken feed

Tags

NGSS.MS-LS2-1

"If pine tree seedlings are grown in red light then they will grow faster than pine tree seedlings grown in blue light." What is the dependent variable? (TEKS 1B)

• color of light seedlings are grown in

• Amount of growth of the seedlings

• number of seedlings grown

• location of planting

Choose the statement that is NOT an inference. (TEKS 1D)

• The girl is a high school student.

• The girl is using a microscope.

• The girl is looking at a tiny creature in the microscope.

• The girl enjoys looking at things in the microscope.

In a scientific investigation, the parts of the investigation that remain the same for every trial is the _________________. (TEKS 1B)

• hypothesis

• independent variable

• constants

• control

• dependent variable

Tags

NGSS.MS-PS2-2

In a scientific investigation, the investigator must write a testable hypothesis that is either supported or rejected by the data. (TEKS 1B)

• true

• false

Choose the statement that provides a QUANTITATIVE observation. (TEKS 1E)

• Jody looked outside and saw a very long brown snake on her porch.

• Jorge told his mom that it was too hot to wear long sleeves to school.

• Since the temperature is 35 degrees Fahrenheit outside, Kelly needs to wear a coat.

• The spider crawled up the water spout.

Water boils at 100 degrees Celsius is an example of

• theory

• fact

• law

• principle