sci 2

A student observes the following activities while walking on the beach.

• A seagull catching a fish.
• A Crab digging a tunnel in the sand.
• A child playing with their dog.
• A shrimp hiding in seaweed.

Which of these living organisms was interacting with a non-living part of the environment?

• seagull

• shrimp

• child

• crab

A student makes the following list of observations during a trip to the zoo. Which number is an example of an organism interacting with a nonliving element of its environment?

• 1

• 2

• 3

• 4

Salt is

• not soluble in water.

• less dense in water.

• soluble in water.

• magnetic.

Sugar is

• less dense than water.

• not soluble in water.

• soluble in water.

• Not here

The pictures shows what a student observed when he looked through a hand lens at a penny.
What happens to light passing through a hand lens that makes the image of the penny appear larger? The light is-

• absorbed
• reflected
• refracted
• stopped

Which answer has all renewable resources?

• petroleum, natural gas, coal

• wind, water, sunlight

• coal, oil, wind

• wind, water, oil

Which answer has all nonrenewable resources?

• petroleum, natural gas, coal

• wind, water, sunlight

• coal, oil, wind

• wind, water, oil

Josie likes to visit the park in her neighborhood to watch hummingbirds. Based on the beak of the hummingbird, what does it most likely eat?

• Fish

• Nuts

• Insects

• Flower Nectar

Which organisms eat the same food for energy?

• fox and lemming

• wolf and muskox

• lemming and artic hare

• muskox and wolf

How do you separate iron filings and sand?

• use a filter

• use a sieve

• use a magnet

• use tweezers