Controlled Experiment Variables Review

A study was done to find if different tire treads affect the braking distance of a car.

• Constant

• breaking distance

• Dependant Variable

• tire treads

• Independant Variable

• the type of car

Tags

NGSS.MS-PS2-2

The time it takes to run a mile depends on the person's running speed.

• constant

• running speed

• Independant Variable

• time it takes

• Dependant Variable

• distance (one mile)

The height of bean plants depends on the amount of water they receive.

• Constant

• amt of water

• Indwpendant Variable

• type of bean plant

• Dependant Variable

• height of plant

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

The higher the temperature of the air in the oven, the faster a cake will bake.

• Idenpendant Variable

• type of cake

• Constant

• time to cook

• Dependant Variable

• temp of oven

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Lemon trees receiving the most water produced the most lemons.

• independant varaible

• amt of water

• Dependant Variable

• number of lemons

• Constant

• Type of tree

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

An investigation found that more bushels of potatoes were produced when the soil was fertilized more.

• Constant

• number of potatoes

• Independant Variable

• types of potatoes

• Dependant Variable

• amt of fertilizer

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Students measured the temperature of the water at different depths in Lake Skywalker and found that the temperature varied.

• Dependant Variable

• Location in the lake

• Constant

• depth in the lake

• Independant Variable

• temperature

Tags

NGSS.MS-PS1-4

The amount of pollution produced by cars was measured for cars using gasoline containing different amounts of lead.

• Independant Variable

• type of car

• Constant

• amt of pollution

• Dependant Variable

• amt of lead

Four groups of rats are first massed and then fed identical diets except for the amount of vitamin A they receive. Each group gets a different amount. After 3 weeks on the diet, the rats' masses are measured again to see if there has been a decrease.

• Independant Variable

• Group of rats

• Constant

• amt fo vitamin A

• Dependant Variables

• mass of the rats

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Two groups of students were tested to compare their speed working math problems. Each group was given the same problems. One group used calculators and the other group computed without calculators.

• Constant

• with or without calculators

• Dependant Variable

• Type of math probelms

• Independant Variable

• speed