5th gd Science Review

Scientists use a problem they have defined and research from appropriate sources to form a ________________, or a hypothesis.

• Prediction

• Opinion

• Inference

• Guess

A scientific investigation should only test _____ variable at a time.

• 5

• 2

• 1

• 3

Information from which a conclusion can be drawn from or a prediction can be made is called?

• Data

• Research

• Opinions

• Facts

For a scientific conclusion to be valid, it must be based on ____________________ and sound reasoning, not opinion.

• Inference

• Guessing

• Observations

• Mr. Ragon's theories

An ____________________ is something you find out about objects.

• Truth

• Their favorite food

• Observation

• Idea

The first step of the Scientific Method is?

• Ask a question

• Test your results

• Repeat your experiment

• State your hypothesis

Science is grounded in testable experiments. Which of these is a testable scientific question?

• Is growing plants a fun hobby?

• What gas do plants produce during photosynthesis?

• What kinds of plants look best by my house?

• What potted plants should I grow?

Scott grew four basil plants by putting them in a mixture of water and fertilizer. He wanted to find out if growing the plants this way could make them grow taller than plants that grow in the ground. How should Scott set up a control group for his experiment?

• He should grow four basil plants in soil.

• He should grow four tomato plants in water and fertilizer.

• He should use different amounts of fertilizer for each plant.

• He should grow some plants in warm water and some in cold water.

A scientist discovers a dinosaur fossil in her local park. She records her observations in her notebook. Why is this considered an investigation and NOT an experiment?

• The scientist had only one control group in her study.

• The scientist is unable to repeat her study of what the dinosaur ate.

• The scientist has an opinion of what the dinosaur ate.

• The scientist only recorded her observations; there was no variable, no hypothesis.

Turtles are cold-blooded, meaning they use the Sun to keep warm. A student hypothesizes that his pet turtle will prefer swimming in warm water. He places his turtle on a rock in the middle of the bathtub and measures how much time the turtle spends off of the rock during a five minute period. He conducts the experiment under four conditions in the bathtub: no water, warm water, cool water, and room temperature water. In this experiment , which is the control group?

• The warm water.

• The cool water

• The empty tub

• The room temp water