N.1.1, N.1.2, N.1.3 and N.2.1 review

What is the BEST reason you always repeat an experiment?

• Make sure your data is consistent and accurate

• Make sure your data supports your prediction

• Make sure your experiment is easy to do

• Make sure your experiment has lots of data

Does warm salt water or cold salt water dissolve salt faster? What would be the variable in this experiment?

• Water

• temperature of water

• type of salt

• speed of stirring

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Does salt dissolve faster when stirred fast or slow? What would be the variable in this experiment?

• Water

• temperature of water

• type of salt

• speed of stirring

When doing an experiment Mrs. Blackman says you should always take careful notes. You were sick and tired of Mrs. Blackman telling you what to do so you didn't take careful notes. In the end Mrs. Blackman is always right and your experiment was a disaster. What do you think went wrong with your experiment since you didn't take careful notes?

• Mrs. Blackman gave you a bad grade

• You have to take detailed notes so that your experiment can be repeated

• Detailed notes let others know that you did an experiment

• Detailed notes are important so that you can change data

Tags

NGSS.MS-PS2-5

Which of these observations are scientifically testable?

• Ants are more fun to watch than beetles

• Trees that are tall are better than trees that are short

• Science is more fun than math

• Green apples don't go bad as fast as red apples

Mrs. Blackman ask the whole class to go home and do an experiment to determine what melts faster frozen salt water or frozen fresh water. You go home and take careful notes, in the morning you are talking with your friend before class and find out that you both got different answers. You said salt water melted faster and your friend said fresh water. What should you do?

• Ask the rest of your classmates and go with their answers

• review your procedures and see where one of you or your friend made a mistake and then repeat the experiment again

• Change your answer cause your friend gets higher grades than you

• Go ask Mrs. Miller

Tags

NGSS.MS-PS1-2

NGSS.MS-PS3-4

What makes an experiment different from any other scientific investigation? Select all that apply

• It has one variable

• It test something

• It has a testable question

• It gathers opinions

• It gathers data

What is the best way to make sure your data is accurate in an experiment?

• Do research

• Do your experiment multiple times

• Make a prediction

• Form a conclusion

Tags

NGSS.MS-ETS1-3

NGSS.MS-PS2-5

When you show how something works and not testing. What type of investigation is that?

• Survey

• Demonstration

• Experiment

• Simulation

When you test something. What type of investigation is that?

• Survey

• Demonstration

• Experiment

• Simulation

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4