Welcome back Minions

Warm up on the board…

Scientific Method – Controls & Variables Last night you had to do a worksheet for homework.

We shall go over the answers…

Homework… • Control – • A group within an experiment that is not changed or experimented on.

• Variable – • The factor that can change in an experiment.

• Independent Variable – (aka: manipulated variable) • The factor a scientist changes during an experiment • Dependent Variable – (aka: responding variable) • A factor that changes in an experiment as a result of the independent variable

Scenario 1 (Krusty Krab’s Breath Mints) • 1) 50 customers in Group B • 2) Breath Mint • • 3) Customer’s Breath 4) His breath mint works a majority of the time.

• 5) What do you think?

Scenario 2 (SpongeBob Clean Pants) • 6) Will the Clean-O detergent clean his pants.

• • 7) Detergent 8) Cleanliness of his pants • 9) Detergent does not work as well as plain water

Scenario 3 (Squidward’s Symphony) • 10) Instruments played • 11) Jellyfish attracted • • 12) What do you think?

13) What do you think?

Scenario 4 (Super Bubbles) • 14) It produces bubbles twice as big as bubbles from regular bubble soap.

• • 15) Bubble soap 16) Size of the bubbles • 17a) • Super bubbles: 151 / 10 = 15.1

• Regular bubbles: 115 / 10 = 11.5

• • 17b) What do you think?

18) What do you think?

Homework • Handout sheet for lab safety • Take home, read it thoroughly, secure it in your science notebook.

• Draw me a picture tonight of one of the rules • Use a page in your science notebook.

• Color please.

• Study your vocabulary • Quiz tomorrow!!!