Hypothesis And Variables

Determine the Independent Variable in the statement below

Farah studied 2 hours for her summative, Layan studied 4 hours. Layan got better marks.

• Marks

• Summative Test

• Layan

• Studying hours

Determine the dependent variable

Group (A) drinks coffee 3 times a day, Group (B) does not drink coffee.

Group (A) sleeps 3 hours at night. Group (B) sleeps 10 hours at night.

• Drink Coffee

• Does not drink Coffee

• hours of sleep

• Group A

Determine the Controlled Variable

A kid was playing with 2 red toy cars, he slide one on a short slide at the park and another on a long slide. The second car reached the end faster.

• Short Slide

• The park

• Long Slide

• the cars

Write a hypothesis about this scenario

A kid was playing with 2 red toy cars, he slide one on a short slide at the park and another on a long slide.

The variable that We change on purpose is

• Controlled

• Dependent

• Independent

• Constant

Define the Dependent Variable

How many independent variables are allowed to be changed in one experiment?

• 0

• 1

• 2

• 3

A scientist is testing how fast different flavors of ice cream melts. What could be a controlled variable?

• Chocolate

  Ice cream

• Vanilla Ice cream

• The size of the scoop 

• Place they are in

Tags

NGSS.MS-PS3-4

A student wants to test the effects of type of exercise on heart rate.

 What is the dependent variable?

• amount of exercise

• heart rate

• type of exercise

• time of the day

A hypothesis is

• a question

• an educated guess / prediction

• using your senses to collect data

• measure using tools to collect data