Variables, Scientific Questions, and Hypotheses!

An experiment is set up with ten pots to test the effective of fertilizer on plant growth. 5 pots have fertilizer added to the soil, 5 pots do not have fertilizer added to the soil. Each pot has 1 spider plant and 5 cups of soil. The pots are watered once a week with 1/2 cup of water. Water would be what type of variable?

• Indepedent
• Dependent
• Constant
• Water is not a variable

Tags

NGSS.MS-LS1-5

An experiment is set up with ten pots to test the effective of fertilizer on plant growth. 5 pots have fertilizer added to the soil, 5 pots do not have fertilizer added to the soil. Each pot has 1 spider plant and 5 cups of soil. The pots are watered once a week with 1/2 cup of water. Fertilizer would be what type of variable?

• Independent
• Dependent
• Constant
• Fertilizer is not a variable

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

An experiment is set up with ten pots to test the effective of fertilizer on plant growth. 5 pots have fertilizer added to the soil, 5 pots do not have fertilizer added to the soil. Each pot has 1 spider plant and 5 cups of soil. The pots are watered once a week with 1/2 cup of water. What is something that would need to be true of the spider plants?

• The plants should not be the same size
• The plants should be the same species
• The plants cannot grow with fertlizer
• The plants are the independent variable

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Mrs. Cannaday wants to see which treat causes Voodoo to jump the highest. What is her independent variable?

• Voodoo
• Type of treat
• How high Voodoo jumps
• Mrs. Cannaday

Mrs. Cannaday wants to see which treat causes Voodoo to jump the highest. What is her dependent variable?

• Voodoo
• Type of treat
• How high Voodoo jumps
• Mrs. Cannaday

Mr. Conyers needs your help: He needs to find the constant variables for his experiment. He is trying to determine what shampoo leaves his beard the softest. Which variable would be a constant?

• Type of Shampoo

• Softness of Mr. Conyer's beard

• Amount of Shampoo

• He doesn't need any constant variables

Ms. Forbes is attempting to test which parachute keeps her eggs from breaking when thrown from the roof of her house (this is what she does on the weekends). The type of eggs would be...

• the independent variable

• the dependent variable

• a constant variable

• a waste of money

Tags

NGSS.MS-PS2-2

Ms. Forbes is attempting to test which parachute keeps her eggs from breaking when thrown from the roof of her house (this is what she does on the weekends). The type of parachute is....

• the independent variable

• the dependent variable

• a constant variable

• a waste of money

Ms. Forbes is attempting to test which parachute keeps her eggs from breaking when thrown from the roof of her house (this is what she does on the weekends). The height of her roof is....

• the independent variable

• the dependent variable

• a constant variable

• a waste of money

Tags

NGSS.MS-PS2-2

The librarians want to know which students are checking out what types of books. They are testing "Which type of book do 7th graders check out most often: fiction or nonfiction?" The genre of the book is

• the independent variable
• the dependent variable
• a constant variable
• a waste of money