Chapter 2 Science Test

1.

1 point

An organism that makes their own food is called a ___________.

2.

1 point

An organism that that obtains energy by feeding on other organisms is called a ______________.

3.

1 point

Consumers that eat only plants are called ______________.

4.

1 point

______________ eat only animals.

5.

1 point

Consumers, like bears,that eat both plants and animals are called

6.

1 point

A vulture is an example of a ____________________, a carnivore that feeds on the bodies of dead organisms.

7.

1 point

________________________, break down biotic wastes and dead organisms and return the raw materials to the ecosystem. (Think mushrooms, legumes)

8.

1 point

What is the main source of energy for all three energy roles?

producers

sunlight

consumers

water

9.

1 point

A _____________ is a series of events in which one organism eats another and obtains energy.

food chain

food web

food pyramid

food cycle

10.

1 point

____________ consist of many overlapping food chains in an ecosystem.

11.

1 point

The least amount of energy is available at the _______________ level of a food pyramid.

2nd level consumers

bottom

producer

top

12.

1 point

The processes of evaporation, condensation and precipitation make up the ______________________.

13.

1 point

_____________________ is the process by which molecules of liquid water absorb energy and change into a gas.

14.

1 point

The process by which a gas changes to a liquid is called ______________.

precipitation

condensation

evaporation

rain water

15.

1 point

Rain, snow, sleet or hail is called ___________________ in the water cycle.

16.

1 point

In which state of matter do the molecules move the most spread out?

solid

liquid

gas

plasma

17.

1 point

A _____________is 2 or more atoms combined.

particles

matter

atom

molecule

18.

1 point

What is matter made of?

19.

1 point

If a snake eats a mouse that eats grass, the snake is a _________________.

third level predator

producer

first level consumer

second level consumer

20.

1 point

A visual that shows the amount of energy that moves from one feeding level to the next in a food web is called a ________________________.

energy pyramid

food chain

ecosystem

population graph

21.

1 point

Which level of the energy pyramid has the most available energy?

consumers

third level consumers

producers

first level consumers