Science 8 Semester 2 Final

50 Questions | By UOSScience | Updated: Mar 14, 2022 | Attempts: 237

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1.

One way to kill harmful insects while protecting beneficial insects is to use _________.
- A.
  
  Natural pesticides
- B.
  
  Nonaerosol insecticides
- C.
  
  Spray pesticides
- D.
  
  Inexpensive pesticides
2.

Waste that can catch fire, eat through metal, explode, or make people sick is called __________.
- A.
  
  Hazardous waste
- B.
  
  Garbage
- C.
  
  A pesticide
- D.
  
  Critical waste
3.

The process of recovering valuable or useful materials from waste or scrap is called ________.
- A.
  
  Reducing
- B.
  
  Rethinking
- C.
  
  Reusing
- D.
  
  Recycling
4.

What do scientists call the rock that is formed when magma cools below Earth's surface?
- A.
  
  Volcanic rock
- B.
  
  Eruptive rock
- C.
  
  Intrusive igneous rock
- D.
  
  Extrusive igneous rock
5.

The number and variety of organisms in a given area at a certain time is called _______.
- A.
  
  Kingdoms
- B.
  
  Overpopulation
- C.
  
  Ecology
- D.
  
  Biodiversity
6.

Which of the following is NOT true regarding cellular respiration?
- A.
  
  It creates carbon dioxide.
- B.
  
  It uses sunlight to help convert glucose into energy.
- C.
  
  It happens on the mitochondrion.
- D.
  
  It occurs in animal cells.
7.

The way a surface reflects light is called a mineral's _____.
- A.
  
  Streak
- B.
  
  Magnetism
- C.
  
  Color
- D.
  
  Luster
8.

One type of competition involves individuals competing for resources. The other involves competition between different
- A.
  
  Environments.
- B.
  
  Relationships.
- C.
  
  Organisms.
- D.
  
  Populations.
9.

When looking at a mineral, the best way to tell its true color is to look at the mineral's _____.
- A.
  
  Reflection
- B.
  
  Luster
- C.
  
  Streak
- D.
  
  Color
10.

Besides texture, how else are rocks classified?
- A.
  
  By their composition
- B.
  
  By their grain shape
- C.
  
  By their grain size
- D.
  
  By the amount of foliation
11.

After one species disappears, the other species in the ecosystem
- A.
  
  Benefit.
- B.
  
  Are unaffected.
- C.
  
  Die.
- D.
  
  Are thrown out of balance.
12.

During the rock cycle, what forms when magma cools?
- A.
  
  Foliated rock
- B.
  
  Metamorphic rock
- C.
  
  Sedimentary rock
- D.
  
  Igneous rock
13.

A bird eats a worm. Who is the predator?
- A.
  
  The worm
- B.
  
  Both are the predators
- C.
  
  The bird
- D.
  
  Both are prey
14.

How are rock layers arranged in the geologic column?
- A.
  
  The oldest rocks are on the top.
- B.
  
  The youngest rocks are on the bottom.
- C.
  
  The youngest rocks are in the middle.
- D.
  
  The oldest rocks are on the bottom.
15.

A naturally occurring solid mixture of one or more minerals and organic matter is called _____.
- A.
  
  Erosion
- B.
  
  Texture
- C.
  
  The rock cycle
- D.
  
  A rock
16.

Developing alternative energy sources will reduce our need for __________.
- A.
  
  Electricity
- B.
  
  Fossil fuels
- C.
  
  Habitats
- D.
  
  Cars
17.

Photosynthesis allows
- A.
  
  A plant leaf to turn green.
- B.
  
  A plant to produce food (glucose).
- C.
  
  A cell to produce energy without oxygen.
- D.
  
  An animal cell to get energy from food.
18.

Organisms that can make their own food from sunlight are called
- A.
  
  Decomposers.
- B.
  
  Scavengers.
- C.
  
  Producers.
- D.
  
  Consumers.
19.

Which of the following is an example of mineral replacement?
- A.
  
  Petrified wood
- B.
  
  La Brea asphalt
- C.
  
  A frozen mammoth
- D.
  
  Hardened tree sap
20.

Cells need to produce new cells in order to
- A.
  
  Create new chromosomes.
- B.
  
  Replace cells that have died.
- C.
  
  Release energy from food.
- D.
  
  Obtain energy from sunlight.
21.

Which statement is true about the process of determining whether an object is older or younger than another?
- A.
  
  The process is an exact science.
- B.
  
  The process is called absolute dating.
- C.
  
  The process is only done in certain parts of the world.
- D.
  
  The process is called relative dating.
22.

Something that can be broken down by living organisms is ____________.
- A.
  
  Ecological
- B.
  
  Renewable
- C.
  
  Biodegradable
- D.
  
  Economic
23.

The process by which land used for mining is returned to its original state is called _____.
- A.
  
  Renovation
- B.
  
  Regeneration
- C.
  
  Reclamation
- D.
  
  Recycling
24.

A silicate mineral must contain __________.
- A.
  
  Silicon and carbon
- B.
  
  Carbon and hydrogen
- C.
  
  Oxygen and carbon
- D.
  
  Silicon and oxygen
25.

Herbivores, carnivores, and scavengers are all examples of
- A.
  
  Decomposers.
- B.
  
  Producers.
- C.
  
  Omnivores.
- D.
  
  Consumers.