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TCAP Review 7th Grade Science (Part 2)

Total questions: 65

Worksheet time: 37mins

Name
Class
Date
1.

A mixture of gases that surrounds the Earth like a blanket.

a)

atmosphere

b)

troposphere

c)

ozone

d)

nitrogen

2.

The gas that makes up most of Earth’s atmosphere

a)

lifting

b)

troposphere

c)

wind funnel

d)

nitrogen

3.

The air we breathe is mostly made of

a)

nitrogen

b)

oxygen

4.

Earth's atmosphere is mostly made up of which 2 gases? CHOOSE 2!!!!!!

a)

nitrogen

b)

oxygen

c)

ozone

d)

water vapor

5.
Earth's current atmosphere is
a)
78% nitrogen, 21% oxygen, 0.9% argon and 0.037% carbon dioxide
b)
78% oxygen, 21%nitrogen, 0.9% argon, 0.037% carbon dioxide
c)
78% nitrogen, 21% argon, 1% oxygen
d)
78% oxygen, 21% nitrogen, 1% carbon dioxide
6.
Which of the following is the best conclusion that can be made from this graph?
a)
atmospheric carbon dioxide levels have been decreasing since 1960
b)
Hawaii has a lot of carbon dioxide
c)
humans have been working hard to decrease carbon dioxide levels
d)
atmospheric carbon dioxide levels have increased steadily since 1960
7.

Which of the following have been changed or altered due to climate change ?

a)

droughts

b)

flooding

c)

melting of polar ice caps

d)

all of the above

8.

The main human activity that releases greenhouse gases is

a)

using public transportation and there by reduce the affects of greenhouse gases.

b)

burning fossil fuels

c)

texting on cellphones

d)

eating meat

9.

Which of the following is contributing to an INCREASE in carbon dioxide in the atmosphere?

a)

deforestation

b)

photosynthesis

c)

oceans

d)

all of the above

e)

the loss of animal species

10.
 What is the greenhouse effect?
a)
The warming of a planet due to trapped radiation.
b)
The cooling of Earth due to air pollution.
c)
The heating of a solid, such as a rock.
11.
What gas from the list below is a cause for global warming?
a)
Urethane
b)
Oxygen
c)
Carbon Dioxide
12.
What do scientists think the effect will be of having more greenhouse gases in our atmosphere?
a)
More warming of the atmosphere
b)
More cooling of the atmosphere
c)
More air in the atmosphere
d)
Less air in the atmosphere
13.
What do humans do that releases greenhouse gases into the atmosphere?
a)
Burn fossil fuels (like gas and coal)
b)
Build cement buildings
c)
Ride bikes and use solar energy
d)
Compete in the Olympics
14.
T/F: Water vapor is a greenhouse gas
a)
True
b)
False
15.
T/F: Some greenhouse gases are naturally present in the Earth's atmosphere
a)
True
b)
False
16.
Increased carbon dioxide may cause global warming by trapping more ____________ in the atmosphere.
a)
water
b)
gases
c)
heat
d)
water vapor
17.
Which is a green-house gas?
a)
Methane
b)
Oxygen
c)
Hydrogen
d)
Ammonium
18.

Kingdom Eubacteria and Kingdom Archaea contain organisms which were once placed into the same kingdom. While biochemical analysis of their genomes and metabolisms shows that they are significantly different, they were once thought to belong to the same kingdom because they both -

a)

maintain steady metabolisms

b)

contain only prokaryotic organisms

c)

construct proteins using ribosomes and mRNA

d)

act as the main producers in forest biomes

19.

What do archaea and bacteria have in common?

a)

Their cells have well-defined nuclei

b)

They are multicellular

c)

They are all shaped like rods, spheres, and spirals

d)

Their cells have no nuclei

20.
I am a prokaryote and live where others can't. What kingdom do I belong to?
a)
Animalia
b)
Archaebacteria
c)
Eubacteria
d)
Protista
21.
I am a prokaryote and live where others can't. What kingdom do I belong to?
a)
Animalia
b)
Archaebacteria
c)
Eubacteria
d)
Protista
22.
A cell with nucleus
a)
Autotrophic
b)
Prokaryotic
c)
Eukaryotic
d)
Heterotrophic
23.
All of the following have a nucleus except...
a)
Bacteria
b)
Animalia
c)
Plantae
d)
Protista
24.
Is fungi autotrophic or heterotrophic?
a)
Autotrophic, they make their own food
b)
Hetertrophic, they get food from other organisms
25.
What kingdoms are PROKARYOTIC?
a)
plant and animal
b)
protist and fungus
c)
archaebacteria and eubacteria
d)
archaebacteria and protist
26.
A pure substance that cannot be broken down into other substances by chemical or physical means. 
a)
compound          
b)
atom
c)
mixture 
d)
element
27.

Which of these is an element?

a)

Salt (NaCl)

b)

Water (H20)

c)

Oxygen (O)

d)

Carbon Dioxide (CO2)

28.

Which of these is a compound?

a)

Aluminium (Al)

b)

Carbon Dioxide (CO2)

c)

Nitrogen (N)

d)

Sand

29.

Air is:

a)

An element

b)

A compound

c)

A mixture

d)

None of these

30.
What is an example of a mixture?
a)
iron
b)
ice
c)
soil
d)
gold
31.

Which of the following is classified as a pure substance?

a)

Lemonade

b)

Fruit punch

c)

ketchup

d)

Helium

32.
A mixture that is uniform and well mixed is _____.
a)
homogeneous
b)
hetergeneous
c)
pure substance
d)
compoud
33.
The picture shown here is what type of mixture?
a)
homogeneous
b)
hetergeneous
c)
pure substance
d)
element
34.
This diagram represents a _____.
a)
pure substance that is a compound
b)
mixture of elements
c)
pure substance that is an element
d)
mixture of compounds
35.

___________ are the smallest unit of an element that maintains the properties of that element.

a)

Atoms

b)

Elements

c)

Compounds

d)

Mixtures

36.

A ______________ is made up of different kinds of atoms chemically combined.

a)

element

b)

compound

c)

mixture

d)

molecule

37.

True or False: elements AND compounds are pure substances.

a)

True

b)

False

38.

When a substance is heated, particles will

a)

Move further apart

b)

Get larger

c)

Move closer together

d)

Be unaffected

39.

The process when a solid turns into a liquid

a)

Evaporation

b)

Sublimation

c)

Freezing

d)

Melting

40.

The process when a gas turns into a liquid

a)

Condensation

b)

Sublimation

c)

Freezing

d)

Evaporation

41.

The process when a liquid turns into a gas

a)

Evaporation

b)

Melting

c)

Condensation

d)

Deposition

42.

The process when a solid turns into a gas

a)

Sublimation

b)

Deposition

c)

Evaporation

d)

Melting

43.

The process when a gas turns into a solid

a)

Deposition

b)

Weathering and Erosion

c)

Super freezing

d)

Sublimation

44.

A ________ is a group of 2 or more organs working together to keep an organism alive.

a)

cell

b)

tissue

c)

organ

d)

Organ system

45.

The ______ system helps you move, protects your organs, gives support to the body, and makes red blood cells.

a)

skeletal system

b)

muscular system

c)

digestive system

d)

respiratory system

46.

The ________ system works with the skeletal system to help you move and provides shape and warmth.

a)

skeletal

b)

integumentary

c)

muscular

d)

digestive

47.

The _____ system's function is to break down food into molecules that the body (cells) can use for energy.

a)

muscular

b)

digestive

c)

respiratory

d)

endocrine

48.

The _____ system is a transport system, carrying oxygen, carbon dioxide, and wastes to and away from cells using the heart and blood.

a)

endocrine

b)

circulatory

c)

respiratory

d)

excretory

49.

The ______ system's function is gas exchange. It brings oxygen in and exhales carbon dioxide with the lungs, trachea, and diaphragm

a)

endocrine

b)

excretory

c)

circulatory

d)

respiratory

50.

The _______ system includes the skin, hair, and nails. It is the body's first line of defense, absorbs vitamin D, excretes sweat.

a)

respiratory

b)

nervous

c)

Integumentary

d)

skeletal

51.

This system controls the body using the brain, spinal cord, and nerves.

a)

nervous system

b)

endocrine system

c)

excretory system

d)

digestive system

52.

The ______ system removes the body's wastes through the kidneys (cell wastes), digestive (feces), respiratory (CO2), and integumentary (salts/sweat)

a)

excretory

b)

digestive

c)

respiratory

d)

circulatory

53.

Green plants and algae make their own food through photosynthesis. What is photosynthesis?

a)

a cell process that uses energy from sunlight to convert water and oxygen into food

b)

a cell process that uses energy from sunlight to convert water and glucose into food

c)

a cell process that uses energy from sunlight to convert water and chlorophyll into food

d)

a cell process that uses energy from sunlight to convert water and carbon dioxide into food

54.

Plant cells contain a green pigment called chlorophyll. Chlorophyll has a role in the process of photosynthesis. What does chlorophyll do?

a)

produces glucose from oxygen

b)

produces oxygen from glucose

c)

absorbs light energy from the sun

d)

absorbs glucose from the plant

55.

Plants absorb and store some of the energy in sunlight through a process called …

a)

Cellular respiration

b)

Photosynthesis

c)

Carbon Cycle

d)

Decomposer

56.

What is the function of the mitochondria?

a)

To protect the nucleus

b)

To supply energy for the cell via cellular respiration

c)

To digest food

d)

To carry out photosynthesis

57.

What is the function of the chloroplast?

a)

To protect the nucleus

b)

To supply energy for the cell via cellular respiration

c)

To digest food

d)

To carry out photosynthesis

58.

The ______________ is the cellular organelle that converts glucose into ATP, a chemical form of energy the cell can use.

a)

Chloroplast

b)

Chlorophyll

c)

Mitochondria

d)

Nucleus

59.

Both plants and animal cells can carry out the following cell process…

a)

Photosynthesis because they both contain chloroplast

b)

Cellular respiration because they both contain chloroplast

c)

Photosynthesis because they both contain mitochondria

d)

Cellular respiration because they both contain mitochondria

60.

Which of the following is the chemical equation for cellular respiration?

a)
b)
61.

Which of the following is the chemical equation for photosynthesis?

a)
b)
62.
What does not produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
63.
In the carbon cycle, producers take in the gas __
a)
carbon dioxide
b)
oxygen
c)
nitrogen
d)
carbon monoxide
64.
How does the carbon in grass become part of a lion?
a)
The lion eats the grass
b)
Carbon from grass doesn't end up in a lion. 
c)
The carbon ends up in the lion's food chain. 
d)
The lion breathes in carbon given out by the plant
65.
Which of the following removes carbon from the atmosphere?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Death

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