Science 8 Semester 2 Final
This is your description.
- 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.
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