7th grade · Science · Unit 12 of 12
Biodiversity & Kelp Forests
Healthy ecosystems and protecting variety of life.
What your child practices
Practices why biodiversity and ecosystem services matter, and how to evaluate solutions that protect ecosystems such as California's kelp forests, wetlands and redwood forests.
California Content Standards learning standard: MS-LS2-5 · evaluating solutions that maintain biodiversity and ecosystem services
Sample questions
A taste of this unit. In the app, questions change every time and get easier or harder to match your child.
Question 1
Bees pollinating crops is an example of an…
- invasive species
- ecosystem service
- abiotic factor
- pollutant
ecosystem service
Hint: Nature helps farms.
Question 2
Which is an ecosystem service?
- Wetlands filtering water
- A mall opening
- A road being paved
- A factory making cars
Wetlands filtering water
Hint: Nature's work.
Question 3
Which solution best protects a kelp forest?
- Dumping more runoff
- A marine protected area with limits on fishing
- Removing all sea otters
- Building more seawalls
A marine protected area with limits on fishing
Hint: Protect the whole system.
Question 4
Which helps salmon streams?
- Removing all shade
- Dumping waste
- Planting trees along the banks
- Building concrete channels
Planting trees along the banks
Hint: Shade cools water.
Question 5
Sea otters eat sea urchins. Without otters, urchins…
- disappear
- help kelp grow
- overgraze kelp forests
- become otters
overgraze kelp forests
Hint: Keystone species.
Question 6
A kelp forest provides…
- food and shelter for many sea animals
- oil
- fresh drinking water
- sand for beaches only
food and shelter for many sea animals
Hint: Underwater habitat.