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Practice Quiz Experiments and Variables

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Page 1: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Practice Quiz

Experiments and Variables

Page 2: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Directions

• Click anywhere on the screen or hit the down arrow to move to the next slide.

• Write each answer on a piece of paper to test yourself. Count the number correct.

• Study the ideas and words that you get wrong. Good Luck!

Page 3: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Question 1:

What is a condition that can change in an experiment?

Page 4: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Answer:

A variable

Page 5: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Question 2:

What kind of question is created before running a scientific experiment?

Page 6: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Answer:

Research Question

(or Experimental Question)

Page 7: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Question 3:

What is a hypothesis?

Page 8: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Answer:

A testable prediction of the outcome of a scientific experiment or study.

Page 9: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Question 4:

What is the variable that is tested in an experiment?

Page 10: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Answer:

Independent Variable

Page 11: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Question 5:

What is definition for independent variable?

Page 12: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Answer:

Condition in an experiment that the experimenter changes to test.

Page 13: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Question 6:

What was the independent variable in our first yeast experiment?

Page 14: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Answer:

Sugar

Page 15: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Question 7:

What is a dependent variable?

Page 16: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Answer:

The result in an experiment that is observed and measured.

Page 17: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Question 8:

What do scientists use to answer research questions?

Page 18: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Answer:

Data

Page 19: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Question 9:

What were the dependent variables in both yeast experiments?

Page 20: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Answer:

Foam height (cm)

Page 21: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Question 10:

What is a control group (or control trial)?

Page 22: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Answer:

A test (or trial) that is done without making any changes.

Page 23: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Question 11:

Why are control groups or tests necessary in experiments?

Page 24: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Answer:

We compare our results to the control trial to see what happens without the effect of the

independent variable.

Page 25: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Question 12:

What are constants in experiments?

Page 26: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Answer:

Conditions that are kept the same throughout the experiment.

Page 27: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Question 13:

Why do we keep conditions constant?

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Answer:

Constants are used to keep experimental tests fair and accurate.

Page 29: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Practice Problem:Patrick thinks that kelp jerky is good

to eat and will make the Bikini Bottom Gang spell better. He creates an experiment to test this. Group A (Spongebob, Patrick and Gary), will eat kelp jerky for one week but Group B (Sandy Cheeks, Mr. Krabs and Squidward) will eat their regular diet. Patrick counts the number of words they can spell correctly at the start of the experiment and after one week.

Page 30: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Question 14:

What is the independent variable in Patrick’s experiment?

Page 31: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Answer:

The kelp jerky

Page 32: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Question 15:

What was the dependent variable in Patrick’s experiment?

Page 33: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Answer:

The number of words each subject can spell correctly.

Page 34: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Question 16:

List two conditions held constant in this experiment.

Page 35: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Answer:

The same number of subjects in each group, the same amount of time for the test.

Page 36: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Question 17:

What is the control group in this experiment? Why?

Page 37: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Answer:

Group B because they ate their regular diet.

Page 38: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Question 18:

True or False-

A hypothesis is an educated guess.

Page 39: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Answer:

False. A hypothesis is a prediction that can be tested.

Page 40: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Question 19:True or False-

The experimenter controls the dependent variable.

Page 41: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Answer:

False. The experimenter controls the independent variable.

Page 42: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Question 20:

True or False-

A researcher creates a hypothesis before creating an experiment.

Page 43: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

Answer:

True. The hypothesis must be created before an experiment is run.

Page 44: Practice Quiz Experiments and Variables. Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on

How many did you get correct?

19-20 - Awesome! You’re ready - continue your review.

16-18 - Pretty good. You’re ready, but should review a bit more.

13-15 - Hmm. You need to study more.

< 13 - You really need to study your definitions and practice problems.


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