Intro to Physical Science

Intro to Physical Science

Mrs. Mercier

Poll

How much do you know about Physical Science...

Let's start with independent vs. dependent variables?

• I know a LOT!

• I kinda get it

• What class is this?!

Do you remember reading this?

If not...make sure to do it SOON!

The main idea....

A variable is something you're trying to measure. It can be practically anything, such as objects, amounts of time, feelings, events, or ideas. If you're studying how people feel about different television shows, the variables in that experiment are television shows and feelings. If you're studying how different types of fertilizer affect how tall plants grow, the variables are type of fertilizer and plant height.

There are two key variables in every experiment: the independent variable and the dependent variable.

Independent variable: What the scientist changes or what changes on its own. (ie. what I do)

Dependent variable: What is being studied/measured. (ie. what depends on what I do)

Multiple Choice

You are doing chores to earn your allowance. For each chore you do, you earn $3. What is the independent variable?

• the amount of chores you do

• what type of chore you do

• how much you are paid

Multiple Choice

You are buying boxes of cookies at a bakery. Each box of cookies costs $4. Which of the following statements are true?

• The dependent variable is the number of boxes of cookies you buy.

• The independent variable is the number of boxes of cookies you buy.

• The independent variable is the amount of money you spend on the cookies.

Multiple Choice

You fall asleep during your class connect and want to know what effect this may have on your unit 1 test next week. Sleeping during class is your...

• Independent variable

• Dependent variable

More fun practice here (cut and paste or type manually):

https://safeYouTube.net/w/KJwdb