REV: Scientific Method & Experiments

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

• scientific method
• recipe
• data collection
• metric system

If I study for my scientific method test, then I will have a better test score. What is the dependent variable?

• scientific Method

• studying

• independent variable

• test score

If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?

• the weather

• how fast you get to school

• riding a bike or walking

• the distance to school

Tags

NGSS.MS-PS3-1

A scientist investigates the effect of carbon dioxide on plant height. The scientist grows plants in several closed containers. All the plants receive the same amounts of water and light, but the air in each container has a different amount of carbon dioxide. What is the independent variable in this experiment?

• the amount of carbon dioxide in each container

• the number of plants in each container

• the amount of water provided to the plants

• the height of each plant after a period of time

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

What is an observation?

• A scientific statement based on ideas

• Using your senses to notice what is going on around you

• To be unaware of your surroundings

• The question that you want an answer to.

Mr. Chavez set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.

• Distance traveled by the ball

• Height of the ramp

• Mass of the ball

• The ramp materials

Tags

NGSS.MS-PS2-2

What part of the experiment does this describe:

The same type of bean plant, the same amount of water, and the same soil were used.

• Constants

• Control group

• Independent variable

• Hypothesis

Tags

NGSS.MS-ETS1-1

NGSS.MS-LS1-5

The girl is folding her arms.

• Observation
• Inference

The girl does not want to eat her vegetables.

• Observation
• Inference

Any factors that can change in an experiment.

• variable

• data

• conclusion

• result

Tags

NGSS.MS-PS2-2