Hypothesis

What is a hypothesis?

• the thing changed on purpose in the experiment

• an explanation about what you observed

• using your 5 senses to gather data

• an educated guess about the outcome of an experiment

What two words should be in your hypothesis?

• I think

• If ...then...

• It will

• No idea

Tags

NGSS.HS-LS4-4

NGSS.HS-PS1-2

What variable comes after the word IF

• independent variable

• dependent variable

What variable comes after the word then?

• independent variable

• dependent variable

When is a hypothesis written?

• before you decide on a question

• after the experiment

• before the experiment

• after the conclusion

Choose the correctly written hypothesis for "What is the effect of putting Pam Cooking Spray on the bottom of a sled?"

• I think the sled will slide faster.

• If I put Pam Cooking Spray on the bottom of my sled, then I will win the race."

• If I put Pam Cooking Spray on the bottom of my sled, then I will slide faster.

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

The independent variable is

• the part the scientist measures

• the part the scientist changes or is testing

• a letter

The dependent variable is the part

• the letter in the equation

• the part being changed

• the part being measured

Which hypothesis is correctly written?

• I think I will do well on my test today, because I ate a good breakfast.

• If I eat a good breakfast, then I will do well on my test today.

• If I eat a good breakfast, then I will earn a passing grade on my test today.

• If I do well on my test today, I get to out to eat for breakfast.

A hypothesis is never wrong.

• True

• False