Scientific Investigations Quiz

What are these measuring tools called?

• Measuring cups

• Test tube

• Measuring cylinder

• Measuring beaker

For an experiment, a scientist put lime at the base of tomato plant A and baking soda at the base of tomato plant B. She then sealed the plants in plastic bags. Tomato plant A eventually died, and tomato plant B stayed healthy. What is the dependent variable in this experiment?

• 1. Type of plant grown for the test

• 2. Plastic bags wrapped around each plant

• 1. Substance at the base of each plant

• 1. Response of the plants to each substance

The last step in the scientific method is ...

• 1. Constructing a hypothesis

• 1. Doing background research

• 1. Communicating results

• 1. Asking a question

The independent variable ...

• 1. is something that is changed.

• 1. is the group that is not tested.

• 1. depends on the dependent variable.

• 1. is an educated guess.

True or false: The objects shown are most useful for measuring liquid volume.

• True

• False

Max notices that his shower is covered in a green slime. He decides to spray half of the shower with coconut juice, thinking this will remove the slime. He sprays the other half of the shower with water. After 3 days of "treatment," the green slime on the coconut juice side of the shower is gone. What is the dependent variable in his experiment?

• 1. Removal of the green slime

• 1. Max

• 2. Water sprayed on shower

• 1. Amount of coconut juice

Which of the following is a good example of a hypothesis?

• 1. I can clean the window with water.

• 1. If I clean the window with water, then the window will be clean.

• 1. Water is a glass cleaner.

• 1. If I like water, then it should clean the window.

Saarah is doing an experiment involving two types of cooldrink. She measures 1,000 mL of each cooldrink into separate beakers. The equal volumes of the cooldrink would be an example of ...

• A fixed variable

• A dependent variable

• An independent variable

• A variable that Saarah manipulated

True or False: A conclusion states whether a hypothesis was right

• True

• False

The dependent variable ...

• 1. stays the same.

• 1. is changed by the scientist.

• 1. is measured or observed.

• 1. is not part of an experiment.