Parts of Experiments 2020

Which of the following is a quantitative observation?

• The bird is very colorful.
• The bird has 4 different colors on him.
• The bird has many, many feathers.
• It is a bird. 

This variable in an experiment is the one being deliberately changed by the scientist. 

• dependent variable
• independent variable
• data
• control group

Things that stay the same throughout the whole experiment are called

• controls
• dependent variables
• independent variables
• constants

What step does every scientific experiment begin with?

• hypothesis

• investigation/observations

• experiment

• conclusion

Testing a hypothesis often involves a(n):

• answer
• experiment
• problem
• safety check

Tags

NGSS.MS-ETS1-4

NGSS.MS-PS2-2

An experiment is conducted to test how different cleats change an athletes running speed.  Six different types of cleats are tested and the 100m run time is recorded.  What is the independent variable?

• The type of cleat
• The run time
• The 100 meters
• The athlete

How many variables can be tested in a controlled experiment?

• one
• two
• three
• as many as possible

Tags

NGSS.HS-LS1-3

A student wants to test the effects of different types of exercise on heart rate.  What is the dependent variable?

• heart rate
• type of exercise
• amount of exercise
• time of day exercise occurs

An experiment is conducted to test which kind of cat food a cat likes best.  The amount of food the cat eats is recorded and four different type of food are tested. What is the dependent variable?

• The cat food
• The cat
• The amount of food the cat eats.
• The bowl the cat ate out of.

Johnny wants to know how different types of colored light affect plant growth? What is the IV?

• types of plant growth

• types of colored lights

• plant growth on colored lights

• plant growth

Tags

NGSS.MS-LS1-5