Test 1 Review

What are the Test (independent) and Outcome (dependent variables ?

If I change the amount of water a plant receives, the height of the plant will change.

• Test:Height of the plant

  Outcome: Plant

• Test: water

  Outcome: Height of the plant

• Test: plant

  Outcome: water

• None of the above

Eddie and Pedro are mad scientist. Eddie conducted an experiment on frog to where he performed 5 trials. Pedro had doubts about Eddies results so he decided to conduct the same experiment himself. Which scientific process did these mad scientist use?

• Eddie demonstrated replication and Pedro repetition

• Both mad scientist demonstrated repetition

• Eddie demonstrated repetition and Pedro replication

• Both mad scientist demonstrated replication

Which of the following is an example of repetition?

• Brian conducting the same experiment as Pedro

• Brian conducting his own experiment 4 times

• Brian copying an experiment

• None of these demonstrate repetition.

Fill in the blank:

Test(_____________) variable and Outcome(__________) variable.

• control, independent

• independent, control

• dependent, independent

• independent, dependent

Tags

NGSS.MS-PS2-2

A fisherman was trying to figure out the best bait that he could use in order to catch more fish. He knew there was a correlation between the fish bait and the amount of fish that he could catch on a fishing trip. What is the Test (independent) variable in this experiment?

• Fish

• Fisherman

• Fish bait

• Fishing trip

Identify the variables:

If I take my vitamins everyday, then I will not feel tired.

• Test(independent): feeling tired

  Outcome(dependent): taking Vitamins

• Test (independent): taking vitamins

  Outcome (dependent): feeling tired

• Test (independent): taking vitamins

  Outcome(dependent):not feeling tired

Ms.Sarraga wants to learn about the behavior of frogs in her neighborhood. Would this become an experiment or and investigation?

• Experiment

• Investigation

Which method of investigation would be appropriate for Ms.Sarraga to use?

• Look up online and read books about frogs in Florida

• Ask a frog expert

• observe and record the types of frogs and behaviors in her neighborhood

• compare her neighborhood finding to the frogs of her friends neighborhood.

Sofie conducted an experiment where she had 3 plants to which she gave each of them different sunlight. One was in the direct sunlight, one was in the shade and the other was under large trees that only during some time during the day it received light. She measured the growth of the plant over a month and noticed they all grew at different rates. What can we conclude from this experiment?

• The growth of the plant does not correlate with the amount of sunlight.

• The amount of sunlight the plants received affected its growth.

• Sofie did not conduct this experiment correctly

• The plant with the most sunlight grew the most.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Juanita wanted to determine the effect the amount of times a betta fish was fed would affect its weight. She had 3 betta fishes all in separate tanks. Betta 1 received food 3 times a day , Betta 2 received food 2 times a day and Betta 3 only once. What would be the Outcome( dependent variable) of Juanitas experiment?

• The Betta fish

• The fish food

• The times the fish were fed

• The weight of the fish