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LEAP PRACTICE QUIZ Short Version

Total questions: 74

Worksheet time: 1hrs 11mins

Name
Class
Date
1.

The Sun warms your skin on a cold day.

a)

Conduction

b)

Convection

c)

Radiation

2.
What is the definition of CONDUCTION?
a)
When heat is transferred from objects like rays of light or electromagnetically.
b)
a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
c)
When heat transfers from objects that are touching.
d)
When heat transfers through the heater or AC in your house.
3.
What is the definition of CONVECTION
a)
When heat transfers through waves.
b)
When heat transfers from objects that are touching.
c)
a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
d)
Heat traveling from the sun
4.

In heat transfer, heat always flows from the _______________ substance to the _______________ substance.

a)

Hotter to colder

b)

Colder to hotter

c)

Hotter to hotter

d)

Colder to colder

5.

Near the ceiling of a room the air is warmer. The warm air rises because of

a)

conduction

b)

convection

c)

radiation

6.

Two objects have different temperatures. Object A has a temperature of 42 degrees and Object B is 37 degrees. Which direction should the energy transfer between Objects A and B?

a)

From Object A to Object B

b)

From Object B to Object A

c)

Energy will not transfer

d)

Energy will transfer both directions

7.
After taking a hot shower, James steps out of the shower onto the tile floor. The tile felt cold to his feet. Which explanation below best describes James' experience?
a)
Heat from his feet is transferred to the tile floor
b)
Heat from the tile floor is transferred to his feet
c)
Cold from the tile floor is transferred to his feet
d)
Cold from his feet is transferred to the tile floor
8.
High temperature is connected to:
a)
Low kinetic energy.
b)
High kinetic energy.
c)
Zero net energy.
d)
Equal kinetic energies.
9.

What causes hot and cold water to become the same temperature once they are combined?

a)

The heat moves from cooler temperature to warmer temperature.

b)

The energy of the hot water runs out.

c)

Heat (thermal) energy from the hot water is transferred to the cold water.

d)

Heat (thermal) energy causes the water to boil.

10.

What type of thermal energy transfer is number 3 pointing to?

a)

Convection

b)

Conduction

c)

Radiation

d)

Insulation

11.

What happens when the coffee and the cup are in thermal equilibrium?

a)

The temperature of the cup is increasing

b)

The temperature of the coffee is decreasing

c)

There is no net heat flow from the coffee to the cup

d)

There is a net flow from the coffee to the cup

12.

Hot things have ____________ thermal energy than cold things

a)

more

b)

less

c)

same

d)

potato

13.

Cold things often have a _________ kinetic energy because_______

a)

lower; particles are moving around less

b)

lower; particles are moving around more

c)

higher; particles are moving around the same

d)

higher; particles do not move

14.

As temperature increases, molecules _____________

a)

move slower

b)

move the same

c)

move faster

d)

stop moving

15.
Particles of a liquid
a)
are tightly packed together and stay in a fixed position.
b)
have no viscosity.
c)
decrease in volume with increasing temperature.
d)
are free to move around one another but still touch.
16.

What is the weather like in western Texas like today and why?

a)

Cloudy and rainy due to a low pressure system.

b)

Cloudy and rainy due to a high pressure system.

c)

Clear and Sunny due to a low pressure system.

d)

Clear and Sunny due to a high pressure system.

17.

Label the parts of the water cycle.

a)

Infiltration

b)

Surface Runoff

c)

Precipitation

d)

Evaporation

e)

Condensation

f)

Transpiration

1
2
3
4
5
6
1)
2)
3)
4)
5)
6)
18.

What would we expect the climate in the City at Point A to be like?

a)

Hot and humid due to ocean temperatures.

b)

Cold due to ocean temperatures.

c)

Rainy and stormy.

d)

Volcanic due to underground storms.

19.

What is the weather like in Southeast Louisiana like today and why?

a)

Cloudy and rainy due to a low pressure system.

b)

Cloudy and rainy due to a high pressure system.

c)

Clear and Sunny due to a low pressure system.

d)

Clear and Sunny due to a high pressure system.

20.

When a HIGH Pressure System is over an area, what is the weather like there?

a)

Sunny and clear skies.

b)

Cold and frigid.

c)

Hurricane's form.

d)

Cloudy and rainy.

21.

What is responsible for all the different temperatures on this map of the Earth?

a)

Volcanic activity.

b)

The Coriolis Effect.

c)

Themohaline Currents.

d)

Uneven heating by the Sun.

22.

What kind of front is pictured here?

a)

Cold Front

b)

Warm Front

c)

Occluded Front

d)

Stationary Front

23.

What will the weather be like in Kraemertown?

a)

Sunny, with a 50% chance of blue pointy things.

b)

It will most likey be raining.

c)

Tropical winds and light snow.

d)

100 degrees F

24.

Which point gets the most amount of precipitation?

a)

Point A.

b)

Point B.

c)

Point C.

d)

Point D.

25.

What is primarily responsible for the swirly cloud patterns we saw while looking at our year's worth of weather model?

a)

The Coriolis Effect.

b)

Polar transpiration.

c)

High altitude winds.

d)

Low altitude winds.

26.

What is most likely causing the area of intense rains over southwestern Texas?

a)

A warm front moving through.

b)

A high pressure system.

c)

A cold front moving through.

d)

North American Camel- Herding Ocelots (NACHO's).

27.

What kind of front is pictured here?

a)

Cold Front

b)

Warm Front

c)

Occluded Front

d)

Stationary Front

28.

How is it possible that the Atacama Desert can be found next to the the Amazon Rainforest, one of the wettest places on Earth, when rain is constantly heading that direction?

a)

The Andes Mountain Range acts as a rain shadow.

b)

Dry winds.

c)

The Coriolis Effect.

d)

Climate Change.

29.
When water is heated in the ocean by the sun and turns into water vapor
a)
condensation
b)
evaporation
c)
transpiration
d)
runoff
30.

How can you tell a chemical change has occured (choose the three that apply)?

a)

The reactants change state but remain the same

b)

Gas (bubbles) are produced

c)

You can glue it back together

d)

Thermal energy is produced (exothermic reaction)

e)

Light or sound may be produced

31.

What is the process that turns a gas into a liquid?

a)

melting

b)

freezing

c)

evaporation

d)

condensation

32.

Which model below best represents CO2?

a)

b)

c)

d)

33.

Put the molecules in order as follows: Water, Carbon Dioxide, Molecular Oxygen, Molecular Hydrogen.

a)

b)

c)

d)

1)
2)
3)
4)
34.

In a physical change -

a)

The reactants combine to change to something new

b)

The law of the conservation of mass is broken

c)

Gases are produced through an exothermic reaction

d)

A change happens but the item remains the same

35.

Which molecular model represents 3HCl?

a)

b)

c)

d)

36.

The law of conservation of mass states that matter can not be created nor destroyed, it can only ________________.

a)

Destroyed a little bit

b)

Turn invisible

c)

transformed/changed

d)

none of the above

37.

Is fruit ripening a physical or chemical change?

a)

Physical Change

b)

Chemical Change

38.

In a chemical reaction (choose both that apply) -

a)

The substance stays the same but changes state

b)

The substances involved change into something else with different properties

c)

Explosions always occur

d)

The reaction is almost impossible to undo

39.

Is digesting food a physical or chemical change?

a)

Physical Change

b)

Chemical Change

40.

Which molecular model best represents Na2CO3?

a)

b)

c)

d)

41.

Is photosynthesis a physical or chemical change?

a)

Physical Change

b)

Chemical Change

42.

What is the process that turns a liquid into a gas?

a)

melting

b)

freezing

c)

evaporation

d)

condensation

43.

Is rust on a nail a physical or chemical change?

a)

Physical Change

b)

Chemical Change

44.

In which state of matter are the particles the moving the fastest?

a)

solid

b)

liquid

c)

gas

45.

What is the digestive system?

a)

A system to take out the bad stuff that's in your body

b)

A system where a certain group of organs work together to convert food into energy to feed the body

c)

A system where certain organs in the body digest the food you eat

d)

A system that the organs in the stomach make food for the body to digest.

46.

Where does the digestive system start?

a)

The liver

b)

The throat

c)

The stomach

d)

The mouth

47.

These are proteins that aid and speed up chemical reactions (allowing reactions to proceed at a faster rate than would occur without them). These are found in your saliva and throughout the digestive system and break down food from larger molecules to smaller molecules.

a)

enzymes

b)

macromolecules

c)

small intestines

d)

microscopic earthquake jaguars that steal your food

48.

C6H12O6 is a very important molecule known as _________.

a)

mucus

b)

sucrose

c)

glucose

d)

complex carbohydrates

49.

Why does your body have a heart?

a)

It acts as a pump so that blood can get to every part of the body

b)

It controls the actions of the rest of your body

c)

It creates blood

d)

To fall in love, of course!

50.

Why is blood so important for energy?

a)

Has the brain, spinal cord and nerves in it

b)

It has oxygen and food molecules in it, which is delivered to every cell in the body

c)

It looks really cool

d)

It allows us to sleep

51.

A long chain of glucose molecules is called a _________ __________. Enzymes break these into glucose molecules.

a)

complex carbohydrate

b)

simplex carbohydrate

c)

chained carbohydrate

d)

free the carbohydrates

52.

During the chemical reaction Cellular Respiration, oxygen and glucose react to create a molecule of pure energy called ____.

a)

DNA

b)

ATP

c)

Fat

d)

Starch

53.

Carries oxygen and nutrients to all parts of the body.

a)

Integumentary

b)

Nervous

c)

Circulatory

d)

Respiratory

54.

Receives stimuli and transports impulses, coordinates actions and reactions in the body

a)

Integumentary

b)

Nervous

c)

Circulatory

d)

Respiratory

55.

Supplies blood with oxygen and rids the body of carbon dioxide

a)

Integumentary

b)

Nervous

c)

Circulatory

d)

Respiratory

56.

Select all that are products of Photosynthesis.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sunlight (Light Energy)

e)

Glucose (Sugar/food)

57.

Which below is the CORRECT equation for CELLULAR RESPIRATION?

a)

oxygen + glucose(sugar) --> carbon dioxide + water + ATP's

b)

carbon dioxide + water + sunlight --> oxygen + sugar

c)

carbon dioxide + oxygen + sunlight --> glucose (sugar) + water

d)

oxygen + water --> sunlight + carbon dioxide + glucose (sugar)

58.

Which below is the CORRECT equation for CELLULAR RESPIRATION?

a)

O2 + C6H12O6 --> CO2 + H2O + ATP's

b)

CO2 + H2O + sunlight --> O2 + C6H12O6

c)

CO2 + O2 + sunlight --> C6H12O6 + H2O

d)

O2 + H2O --> sunlight + CO2 + C6H12O6

59.

Which below is the CORRECT equation for Photosynthesis?

a)

C6H12O6 + O2 --> H2O + CO2 + ATP's

b)

H2O + CO2 + sunlight --> C6H12O6 + O2

c)

CO2 + O2 + sunlight --> C6H12O6 + H2O

d)

O2 + H2O --> sunlight + CO2 + C6H12O6

60.

Which below is the CORRECT equation for Photosynthesis?

a)

O2 + C6H12O6 --> CO2 + H2O + ATP's

b)

CO2 + H2O + sunlight --> O2 + C6H12O6

c)

CO2 + O2 + sunlight --> C6H12O6 + H2O

d)

O2 + H2O --> sunlight + CO2 + C6H12O6

61.

Energy flows into the photosythesis/cellular respiration matter cycling from the ______.

a)

sun

b)

plants

c)

soil

d)

water

62.

Energy exits the Photosynthesis/Cellular Respiration by ___________.

a)

Being used as CHEMICAL energy by cells, after being stored in glucose.

b)

Being used to make sunlight.

c)

Being used as LIGHT energy by the cells, after being stored in solar cells.

d)

It is stolen by microscopic cell ameoba.

63.

Which group of living things on the energy pyramid contain the MOST energy?

a)

Tertiary

Consumers

b)

Secondary

Consumers

c)

Primary

Consumers

d)

Producers

64.

Where does the energy entering the energy pyramid come from?

a)

food

b)

the sun

c)

bacteria

d)

comets

65.

What three things do plants need to perform photosynthesis?

a)

Water, carbon dioxide, and sunlight.

b)

Water, soil, and sunlight.

c)

Water, soil, and air.

d)

The power of friendship!

66.

Which organelle is responsible making food (Glucose) using sunlight?

a)

Cell Membrane

b)

Nucleus

c)

Chloroplast

d)

Mitochondria

67.

Which 2 are outputs for photosynthesis?

(Pick 2)

a)

Carbon Dioxide

b)

Oxygen

c)

Water

d)

Sugar

e)

Sunlight

68.
Lizards and cacti are biotic factors in a desert ecosystem that would rely on which abiotic factors?
a)
insects and sun
b)
water and insects
c)
snakes and temperature
d)
water and soil
69.

What is the original source of energy for this ecosystem?

a)

Plants

b)

Animals

c)

Air

d)

Sun

70.

If the population of rattlesnakes were to decrease, why would that help to increase the population of hawks?

a)

Rattlesnakes eat hawks

b)

Hawks eat rattlesnakes

c)

Rattlesnakes and hawks both eat kangaroo rats.

d)

It would not help the hawk population.

71.

If the populations of grasshoppers would decrease, what affect would that have on the population of lizards?

a)

Increase

b)

Stay the same

c)

Decrease

d)

Unable to determine

72.

If the trend from 1990 to 2010 were to continue, how many sightings would we expect in 2020?

a)

20 or more

b)

between 10-15

c)

between 5-10

d)

less than 5

73.

A system made up of all the living and nonliving things in an area

a)

Biodiversity

b)

Ecosystem

c)

Dynamics

d)

Service

74.

An event that causes changes to the living or nonliving parts of an ecosystem

a)

Ecosystem

b)

Disturbances

c)

Biodiversity

d)

Succession

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