Science Experiment

An instrument used to magnify something very small that has been placed on a glass slide.

• Beaker

• Erlenmeyer Flask

• Rubber Stopper

• Microscope

Tool used to measure force (in Newtons).

• Spring Scale

• Graduated Cylinder

• Funnel

• Petri Dish

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What tool do we use to measure length?

• graduated cylinder

• beaker

• ruler

• balance

Scenario 1: A student is conducting an experiment to determine how different amounts of sunlight affect the growth of tomato plants.

What is the Independent Variable?

• Amount of sunlight

• Growth of tomato plants

• Type of tomato plant

• Type of soil

• Temperature

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Scenario 1: A student is conducting an experiment to determine how different amounts of sunlight affect the growth of tomato plants.

What is the Dependent Variable?

• Amount of sunlight

• Growth of tomato plants

• Type of tomato plant

• Type of soil

• Temperature

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Scenario 1: A student is conducting an experiment to determine how different amounts of sunlight affect the growth of tomato plants.

What are THREE controlled variables that are NOT independent or dependent variables? Select ALL that apply!

• Amount of sunlight

• Amount of water

• Type of soil

• Temperature

• Growth of Tomato Plant

Scenario: A scientist is investigating how the length of a pendulum affects the time it takes for one full swing.

What is the independent variable?

• Length of the pendulum

• Time for one full swing

• Mass of the pendulum bob

• initial angle

• air resistance

In a study exploring how different types of music affect heart rate, what would be considered controlled variables but NOT an independent or dependent variable? Select all that apply.

• Type of music

• Heart rate

• Volume of music

• Duration of experiment

What is the purpose of a controlled variable in a scientific experiment?

• It is the variable that we manipulate to test our hypothesis.

• It is the variable that changes in response to the independent variable.

• It is a factor that we keep constant to ensure a fair test.

• It is the outcome or result we are trying to measure.

Tags

NGSS.MS-PS2-2

In a science experiment, which variable is the one that you deliberately change or manipulate to see its effect?

• Controlled variable

• Independent variable

• Dependent variable

• Control group