Testing Skills

You are testing how the amount you water a plant affects its growth. What would be the INDEPENDENT VARIABLE in this experiment.

• They type of pot you put the plants in.

• The amount you water each plant.

• The amount of sunlight the plants get.

• The amount the plant grows.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

What is the DEPENDENT variable (effect) in this experiment?

"Does eating breakfast improve test scores?"

• eating breakfast or not

• the grade you got on the test

• what time you get up in the morning

• how tasty the breakfast is

Mr. Pransky wants to see how different surfaces affect how high a tennis ball can bounce. What is the independent variable?

• the different surfaces

• using the same ball

• how high they bounce

A student wants to test the hypothesis of "If salt is added to water then the boiling point of water will decrease (go down)." What is the independent variable?

• Whether salt is added or not

• Boiling Point

• Amount of water

Tags

NGSS.MS-PS1-2

Which of the following is a testable hypothesis in a scientific experiment?

• Plants grow faster in red light than in blue light.

• Blue is the most beautiful color.

• Dogs are better pets than cats.

• Chocolate tastes better than vanilla.

What is the primary purpose of a control group in a scientific experiment?

• To provide a standard for comparison

• To ensure the experiment is valid

• To increase the sample size

• To test multiple variables at once

In a scientific experiment, what is the independent variable?

• The variable that is changed or controlled

• The variable that is measured

• The variable that is kept constant

• The variable that is not used

Which of the following best describes a scientific theory?

• A well-substantiated explanation of some aspect of the natural world

• A guess about how something works

• A hypothesis that has been proven

• An untested idea

What is the role of a hypothesis in scientific research?

• To provide a testable statement that can be supported or refuted

• To summarize the results of an experiment

• To describe the methods used in an experiment

• To list the materials needed for an experiment

Tags

NGSS.MS-LS1-5

Which of the following is an example of qualitative data?

• The color of a solution

• The temperature of a liquid

• The mass of a sample

• The volume of a gas