Scientific Process

What step does every scientific experiment begin with?

• hypothesis
• question/problem
• procedures
• conclusion

Scientific questions have to be...

• Measurable/Investigated

• Easy

• Interesting

• Short

Tags

NGSS.MS-PS1-2

This variable in an experiment is the one being changed on purpose by the scientist.

• dependent variable

• independent variable

• data

• control group

Tags

NGSS.MS-PS2-2

Which of the following is NOT an investigative question?

• Do heavier cars cause more damage?

• Do cars that move faster or slower cause more damage?

• Why do car accidents happen?

• Are more people injured if they do not wear a seatbelt?

Students are investigating how the height of a ramp impacts the speed of a toy car. They will make a ramp 30 cm high, 60 cm high, and 90 cm high. They will measure the speed of the car. What is the independent variable?

• speed of the toy car

• height of the ramp

• how hard the car is pushed

• which car is used

Tags

NGSS.MS-PS3-1

Students are investigating how the height of a ramp impacts the speed of a toy car. They will make a ramp 30 cm high, 60 cm high, and 90 cm high. They will measure the speed of the car. What is the dependent variable?

• speed of the toy car

• height of the ramp

• how hard the car is pushed

• which car is used

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Students are investigating how the height of a ramp impacts the speed of a toy car. They will make a ramp 30 cm high, 60 cm high, and 90 cm high. Which is the best hypothesis?

• A higher ramp will make the car go faster.

• If the speed increase the ramp was higher.

• If the height of the ramp increases then the speed will decrease.

• If the height of the ramp increases then the speed will increase because the car will have more force.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

Students are investigating how the height of a ramp impacts the speed of a toy car. They will make a ramp 30 cm high, 60 cm high, and 90 cm high. They will measure the speed of the car. Choose the color of the data table that will give the best results.

• Red

• Purple

• Blue/Cyan

• None

Tags

NGSS.MS-PS3-1

NGSS.MS-PS2-2

NGSS.MS-PS3-5

NGSS.MS-PS3-4

Why is it important for scientists to do several trials when they collect their data?

• One trial is enough

• More trials mean the results are more accurate

• So they can make up more data

Tags

NGSS.MS-PS2-5

Why is doing the scientific process important? (Select the best two)

• It cannot be trusted

• It is long and only done by a few people

• It helps us solve real-world problems.

• It gives us accurate data to help us make good decisions

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS1-5