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STARS Monday CHALLENGE: Geology and Ecosystems

Total questions: 20

Worksheet time: 47mins

Name
Class
Date
1.

Without decomposers, what would build up on the ground and not return to the soil?

a)

large rocks

b)

rain water

c)

bacteria and other microorganisms

d)

dead plant and animal matter

2.

An organism that makes its own food is a/an

a)

producer.

b)

consumer.

c)

predator.

d)

prey.

3.

To avoid being eaten, a rabbit will run away from

a)

carnivores.

b)

scavengers.

c)

herbivores.

d)

producers.

4.

Without the Sun, which of Earth's organisms could no longer survive?

a)

producers only

b)

producers and consumers

c)

scavengers only

d)

nearly all organisms

5.

In this food web, which animals are in competition?

a)

Hawks and coyotes

b)

Squirrels and hawks

c)

Antelopes and squirrels

d)

Hawks and mountain lions

6.

What is the moon mostly made of?

a)

Green Cheese

b)

Hot gases

c)

Lava

d)

Rock

7.

Light colored mountains on the moon that were created by material that was ejected from meteoroid impacts.

a)

craters

b)

highlands

c)

mare

d)

maria

8.

Dark flat areas on the moon made from lava flows 3 to 4 billion years ago.

a)

crater

b)

mare

c)

highland

d)

mountains

9.
A rock which contains a useful mineral is call a/an
a)
gem
b)
quarry
c)
ore
d)
alloy
10.

Which group of minerals is considered the most abundant group of minerals on Earth and includes the minerals feldspar and quartz?

a)

The silicates

b)

The carbonates

c)

The oxides

d)

The flourites

e)

The galenites

11.

Which group of minerals is comprised of oxygen and a metal and includes the minerals hematite and magnetite?

a)

The silicates

b)

The carbonates

c)

The oxides

d)

The flourites

e)

The galenites

12.

This mineral is considered to be the hardest mineral located on Moh's Hardness Scale and is used in tools designed for cutting and drilling -

a)

Calcite

b)

Diamond

c)

Talc

d)

Feldspar

e)

Gypsum

13.
The diagram below shows feeding relationships among some organisms in an ecosystem. Which answer best describes the relationship between hawks and coyotes?
a)
Coyotes are parasites of hawks    
b)
Coyotes are predators of hawks 
c)
Coyotes and hawks are both prey 
d)
Coyotes and hawks compete for the same food
14.
In the food web above, which animal would be considered both a predator and a prey? (do not include plant eating animals as predators). 
a)
The grasshopper
b)
The rabbit
c)
The snake
d)
The Plant
15.
What would likely be the result if a pesticide is used to reduce the # of harvester ants?
a)
an increase in snakes & a decrease in hawks
b)
a decrease in snakes & an increase in hawks
c)
a decrease in mesquite bushes & an icnrease in horned lizards
d)
an increase in mesquite bushes & a decrease in horned lizards
16.
Pond ecosystems require N, P, and K in order to support the growth of algae.  This increase in algal growth can cause an increase in decaying matter in the pond.  What LONG-TERM effect might an increase in algal growth have on a pond ecosystem?
a)
a decrease in the amount of available O2 necessary for fish in the ecosystem
b)
an increase of the fish population in the pond
c)
a population increase in other producers, such as water lilies, in the ecosystem
d)
an increase in available food for the fish in the ecosystem
17.
The oak savanna ecosystem is dependent on wildfires & controlled burnings to manage the growth of invasive & nonnative shrubs and trees and to help maintain the native semi-open ecosystem.  Which statement BEST describes the impact invasive plant species could have if not maintained by fires?
a)
they could decrease the populations of native species
b)
they could decrease the amount of O2 available for the native animals
c)
they could increase the amount of food available to native plants & animals
d)
they could increase the amount of N in the soil that is toxic to the native plants
18.
A pond ecosystem is shown in the diagram below. Which statement describes an interaction that helps maintain the dynamic equilibrium of this ecosystem?
Which statement describes an interaction that helps maintain the dynamic equilibrium of this ecosystem?
a)
The frogs make energy available to this ecosystem through the process of photosynthesis.
b)
The algae directly provide food for both the rotifers and the catfish.
c)
The green-backed heron provides energy for the mosquito larvae.
d)
The catfish population helps control the populations of water boatman and waterfleas.
19.

The table shows different materials made from minerals X, Y and Z. What are minerals X, Y and Z?

a)
b)
20.

Solid elements or compounds present naturally with definite crystalline structures and chemical compositions is the definition for...

a)

Minerals

b)

Diamond

c)

Silver

d)

Galena

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