Water Lab Review - Ocean Acidification Quiz

Ocean acidification refers to the _______________ (increase or decrease?) in pH as the water becomes

• decrease
• increase

The ocean is becoming more acidic due to increasing _______________ in the atmosphere which dissolves in the ocean easily.

• CO2 (Carbon Dioxide)

• O2 (Oxygen)

• N2 (Nitrogen)

• S (Sulfur)

Tags

NGSS.HS-ESS2-6

What color was the pH indicator when you began the experiment?

• Yellow

• Dark Red

• Blue

• Purple

What color was the pH indicator after you blew into the indicator with the straw?

• Yellow

• Dark Red

• Blue

• Purple

Why does the ocean becoming more acidic cause problems for sea urchins and other animals with shells?

• It increases the heat in the local waters, damaging their spines

• It reduces the amount of carbonate in the water, making it harder to construct shells

• It reduces the growth of algae by reducing photosynthesis

• It makes the water cloudy so it reduces the amount of light entering the water

Tags

NGSS.HS-ESS2-6

What were you adding to the water when you blew bubbles into it to make it change color?

(a)  

Tags

NGSS.MS-PS1-2

You may notice small green beads in your flasks. These beads contain photosynthetic algae. Once you have blown your breath into the flask - put the flask under the light. What do you expect will happen to the color and pH of the solution?

• It will stay yellow because the algae aren't really alive

• It will go back to the color it was when the experiment started because the algae absorb CO2

• It will turn a very dark color because the algae will start to die in the indicator

• It will turn an even lighter yellow because the algae will do more cellular respiration than photosynthesis

Tags

NGSS.HS-LS2-5

NGSS.HS-LS1-5

Where does the glucose required for cellular respiration come from?

• CO2 captured by Photosynthesis

• Food generated by fermentation

• Oxygen made by photosynthesis

• Water made by cellular respiration

Does performing cellular respiration contribute to the increase in CO2 in the atmosphere? Why or why not? (Check the carbon cycle farther down)

• Yes, because CO2 is CO2 and it doesn't matter where it came from

• No, because CO2 from respiration came from the air and was captured by photosynthesis

Tags

NGSS.HS-LS2-5

Does the carbon dioxide released from gasoline combustion cause CO₂ to increase in the atmosphere? Why or why not?

• No, because Gasoline comes from plants

• No, because combustion doesn't release CO2

• 
  Yes, because gasoline as a fossil fuel and releases very old carbon

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS2-4