Scientific Investigation

Independent Variable

100

Danna wanted to test the affect of different music on plants. What is the independent variable? (What is changing)

Different music

200

If Mr. Menny wanted to see how times of the day affected the weather, what would be the independent variable?

time of day

300

Anthony likes to play soccer. He uses three types of soccer shoes. He wants to measure which shows will allow him to run the fastest. what is his independent variable?

Types of shoes

400

Larelle is testing the affect of different markers while coloring. He uses three brands and notices that brand 1 and 2 are not as good as brand 3. what is the independent variable?

Brands of markers

500

Ms. Shrepee is giving out three different bags of chips to her students to see which ones her students like the best. What is changing

Chips

Control Variable

100

What is a control variable?

Not changing/Constant/stays the same

200

Ms.Green measures how sunlight affects plant growth on green bean plants. She uses the same amount of water, soil and different times of day for sunlight. Identify one control variable

Water or soil

300

Allen is eating three different bags of chips to see which ones will make him fuller quickest. He eats Takis, Doritos and Lays. He is eating in the morning and he is wearing glasses. What is one control variable/

Allen/eating in the morning/ wearing glasses

400

William is trying to see if skipping breakfast will affect him being sleepy in class. He wears a black hoodie the day of his experiment. He tests it out and he was shown that skipping breakfast makes him sleepy after all. What is the control variable?

Black hoodie/breakfast/william

500

Harold wants to test which store has more customers. He uses Target, Walmart and HEB. During this time he is collecting how many shoppers come in, in 30 minutes. What is a control variable

Harold/ the time

Hypothesis

100

Genesis is testing which food her dog likes the best. She gives her dog chicken, fish and beef. What is a possible hypothesis based on her experiment? 

Answers will vary (looking for if and then)

200

Janel wants to know which phone case will keep her screen from cracking. She like the pink case over the black one. Is this a valid hypothesis. Correct the hypothesis.

No

300

What is a hypothesis?

A testable statement

400

Are all hypothesis true?

no

500

Is this a valid hypothesis? If I leave my crocs in the sun for more than 2 hours they will shrink?

Yes

Testable Questions

100

Ms.Kuykendall like Nikes over Adidas. 

Non-Testable

200

What is a testable question?

Something that can be proved by experimentation

300

True or False? Which is better-Lay's potato chips or Pringles is a testable question?

False-That is an opinion question

400

Fix the non-testable question. 

Jim like Macbooks over Dell laptops.

Answers will vary

500

Do students who study for 20 minutes a night perform better on tests than students who do not study? Testable or non-testable?

Testable Question 

Dependent Variable

100

Fentress wanted to see how Takis affected human growth. What is the dependent variable?

Human growth 

200

What is a dependent variable?

Data measured/collected

300

Ms.Moore wants to know what lotion would best keep her skin moisturized the longest. What is the dependent variable?

Keeping her skin moisturized the longest

400

Andy is going out of town to visit his family. He takes three pair of boots because it going to snow. He want to determine which pair of boots would not cause him to slip and fall. What is the dependent variable?

not falling

500

Liliana wants to go to go swimming but she doesnt know which sun screen will keep her from getting sun burn the quickest. What is the dependent variable?

getting burnt the quickest