Biology Basics Unit Review

I want to test different soap products to see which product kills the most bacteria on my hands.

What is the independent variable in this experiment?

• type of soap
• bacteria on hands
• my hands
• products

I want to test different soap products to see which product kills the most bacteria on my hands.

What is the control group in this experiment?

• washing my hands with water
• bacteria on hands
• washing my hands with soap
• normal hand, no soap

List a quantitative observation. 

• There are 22 cookies in the picture.
• The cookies are not circles.

List a qualitative observations. 

• The girl has blonde hair.
• There are 21 cookies.

 What macromolecule is used for short term energy?

• proteins
• carbs
• lipids
• nucleic acids

What macromolecule does your body never break down for energy?

• carbs
• proteins
• lipids
• nucleic acids

Which if these pieces of equipment is NOT used to transfer liquid from one container to another?

• petri dish

• funnel

• graduated cylinder

• beaker

Which of these pieces of equipment is best to accurately measure a fluid?

• beaker

• flask

• test tube

• graduated cylinder

Considering the image above, which measurement is most accurate?

• 24mL

• 20.5mL

• 800mL

• 3x10^2mL

Considering the image above, which measurement is most precise?

• 24mL

• 20.5mL

• 800mL

• 3x10^2mL