Independent Variable
Danna wanted to test the affect of different music on plants. What is the independent variable? (What is changing)
Different music
What is a control variable?
Not changing/Constant/stays the same
Genesis is testing which food her dog likes the best. She gives her dog normal dog pebbles, chicken, fish and beef. What is a possible hypothesis based on her experiment?
chicken, fish, and beef
Ms.Kuykendall like Nikes over Adidas.
Non-Testable
Fentress wanted to see how Takis affected human growth. What is the dependent variable?
If Mr. Menny wanted to see how times of the day affected the weather, what would be the independent variable?
time of day
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
Janel wants to know which phone case will keep her screen from cracking or if no case will be okay. She tries the pink and the black one. Then tries no case Is this a valid hypothesis. Correct the hypothesis.
pink and black
What is a testable hypothesis?
Something that can be proved by experimentation
What is a dependent variable?
Data measured/collected
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
Allen/eating in the morning/ wearing glasses
I want to test if caffeine will keep me up at night longer. I try testing soda, coffee, red bull, and water. Then I time how long it took me to sleep.
everything except water
True or False? Which is better-Lay's potato chips or Pringles is a testable question?
not testable
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
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
Black hoodie/breakfast/william
Is there a limit on how many variables can be in the experimental group?
no
Jim like Macbooks over Dell laptops.
Answers will vary
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
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
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
What is the definition of experiemental group?
The group that receives the IV
something or special
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
getting burnt the quickest