Physical Science Semester 1 Review

A hypothesis is...

• Scientific law that has been proven correct

• A series of steps followed in an experiment

• An 'if, then' statement / educated guess

• A list of controlled variables in a scientific study

Which of these is a hypothesis?

• Acceleration due to gravity is constant on earth

• Too much TV is bad for your vision

• The speed of the car is 55 mph

• If I feed my dog more, then they will have more energy

Which of these is an example of a scientific model?

• A plastic brain

• A stopwatch

• A microscope

• A graduated cylinder

Tags

NGSS.MS-LS2-3

NGSS.MS-PS1-1

In an experiment, the variable that "I CHANGE" is the...

• Dependent variable

• Independent variable

• Control

• Constant

In an experiment, the variable that IS MEASURED is the...

• Dependent variable

• Independent variable

• Control

• Constant

In an experiment, the variable that DOES NOT CHANGE is the...

• Dependent variable

• Independent variable

• Control

• Constant

You want to see the impact of different soils on how tall plants will grow. You keep the amount of water and sunlight the same. The INDEPENDENT VARIABLE is the...

• Water

• Plant Height

• Sunlight

• Soil Type

Tags

NGSS.MS-LS1-5

You want to see the impact of different soils on how tall plants will grow. You keep the amount of water and sunlight the same. The DEPENDENT VARIABLE is the...

• Water

• Plant Height

• Sunlight

• Soil Type

Tags

NGSS.MS-LS1-5

You want to see the impact of different soils on how tall plants will grow. You keep the amount of water and sunlight the same. The CONTROL/CONSTANT is the...

• Water

• Plant Height

• Sunlight

• Soil Type

What is the density of an object that has a mass of 10 g and a volume of 2 mL?

• 8 g/mL

• 12 g/mL

• 5 g/mL

• 20 g/mL