U4L3: Variables Practice

Match the type of variable to its definition.

• Controlled variable

• The factor that the scientist changes to see how it affects another variable

• Independent variable

• The factor that is measured and is affected by the changes in the IV

• Dependent variable

• The factor that is kept “the same” so it doesn’t affect the results

Tags

NGSS.MS-PS2-2

Read through the experiment and then identify the variables.

• Dependent variable

• The length of the fish (cm)

• Controlled variable

• Feeding the fish the same amount of food

• Independent variable

• The size of the fish tank

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Read through the experiment and then identify the variables.

• Independent variable

• The amount of sunlight (full or partial)

• Controlled variable

• The height of the basil plants (in feet)

• Dependent variable

• The same amount of basil plants on both sides of the house (5 plants)

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Read through the experiment and then identify the variables.

• Dependent variable

• The use of a calculator

• Controlled variable

• How fast they can solve the math problems

• Independent variable

• Solving the same math problems

Read through the experiment and then identify the variables.

• Independent variable

• The type of breakfast he eats (none, cereal, pancakes and eggs)

• Controlled variable

• Eating breakfast at the same time every morning

• Dependent variable

• The distance he bikes (miles)

Read through the experiment and then identify the variables.

• Independent variable

• The same type of pea plant is used

• Controlled variable

• The amount of water given to the pea plants (400mL, 200mL, 100mL)

• Dependent variable

• The height of the pea plants (inches)

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Read through the experiment and then identify the variables.

• Independent variable

• How long he sleeps each night

• Dependent variable

• The amount of time he works out (15 minutes, 30 minutes, 1 hour)

• Controlled variable

• He does the same workout every time

Read through the experiment and then identify the variables.

• Dependent variable

• How spicy the chips are on a scale 1-5 (1-not spicy, 5–extremely spicy)

• Independent variable

• Eating the same number of chips from each bag (2 chips)

• Controlled variable

• The brand of spicy chips (Spicy Funyuns, Takis, Hot Cheetos, and Hot Fries)

Tags

NGSS.MS-ETS1-3

Read through the experiment and then identify the variables.

• Dependent variable

• Using 1 slice of pizza for each place, heating up the pizzas for the same amount of time

• Independent variable

• The heating source (microwave, oven, air fryer)

• Controlled variable

• The crispiness of the pizza on a scale of 1-5 (1-soggy, 5–very crispy)

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

Read through the experiment and then identify the variables.

• Dependent variable

• The amount of milk she drinks (1 cup, 3 cups, 5 cups)

• Independent variable

• Her height (in inches)

• Controlled variable

• Drinking the same type of milk

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1