LEAP Science Review

7TH SCIENCE LEAP REVIEW

Multiple Choice

Which body system is responsible for oxygen being brought in to the body in order to pair it glucose to create ATP?

• NERVOUS SYSTEM

• RESPIRATORY SYSTEM

• DIGESTIVE SYSTEM

• CIRCULATORY SYSTEM

Multiple Choice

Which system takes nutrients from food after it's broken down?

• DIGESTIVE SYSTEM

• CIRCULATORY SYSTEM

• RESPIRATORY SYSTEM

• MUSCULAR SYSTEM

Multiple Choice

Which system has voluntary and involuntary movements guide the food through the process of digestion?

• NERVOUS SYSTEM

• DIGESTIVE SYSTEM

• RESPIRATORY SYSTEM

• MUSCULAR SYSTEM

Multiple Choice

Which body system sends electrical impulses throughout the body?

• MUSCULAR SYSTEM

• DIGESTIVE SYSTEM

• CIRCULATORY SYSTEM

• NERVOUS SYSTEM

Multiple Choice

Which body system transports nutrients throughout the body?

• MUSCULAR SYSTEM

• CIRCULATORY SYSTEM

• DIGESTIVE SYSTEM

• NERVOUS SYSTEM

​- Name of Author

Experiment

Multiple Choice

What is the independent variable?

• color dye

• amount of water

• time

• number of bowls

Multiple Choice

What is the dependent variable?

• dye color

• amount of water

• height of water color

• time

Vocabulary

Multiple Choice

What is a set of interacting parts forming a complex whole?

• system

• parts

• whole

Multiple Choice

What is the body's use of molecules for energy and growth?

• systems

• metabolism

• exercise

Multiple Choice

What is a group of atoms joined together in a particular way called?

• atoms

• molecules

• systems

Multiple Select

What 2 molecules does the body use to make energy?

• oxygen

• amino acids

• proteins

• glucose

Multiple Choice

Molecules that are the building blocks of proteins are called _____.

• oxygen

• proteins

• amino acids

• glucose

Multiple Choice

What is the ability to make things move or change called?

• movement

• energy

• metabolism

Phase Change

Multiple Choice

Which molecules represent a gas?

Multiple Choice

Which molecules represent a liquid?

Multiple Choice

Which molecules represent a solid?

Multiple Choice

Energy moves from .....

• hot to cold

• cold to hot

Multiple Choice

As temperature increases, energy .......

• decreases

• increases

• stays the same

Multiple Choice

As temperature decreases, particles move

• farther apart

• stop moving

• closer together

• the same

Multiple Choice

More particles/molecules means

• more energy

• less energy

• no energy

Multiple Select

Select 2. Solid molecules.....

• take the shape of its container

• move in place

• spread apart

• have a definite shape

Multiple Select

Select 2. Liquid molecules.....

• flow past each other

• do not take the shape of its container

• fly apart

• take the shape of its container

Multiple Select

Select 2. Gas molecules.....

• have a definite shape

• are tightly packed

• fly apart

• have alot of energy

Multiple Choice

The droplets on the outside of a water bottle are from what?

• evaporation

• precipitation

• condensation

Multiple Choice

Condensation occurs when a substance changes from a ______.

• gas to liquid

• liquid to gas

• solid to liquid

• liquid to solid

Multiple Choice

Evaporation occurs when a substance changes from a ______.

• gas to liquid

• liquid to gas

• solid to liquid

• liquid to solid

Multiple Choice

Freezing occurs when a substance changes from a ______.

• gas to liquid

• liquid to gas

• solid to liquid

• liquid to solid

Multiple Choice

Melting occurs when a substance changes from a ______.

• gas to liquid

• liquid to gas

• solid to liquid

• liquid to solid

Multiple Choice

Which substance has the most energy?

Multiple Choice

What is the state of matter of an popsicle?

• solid

• liquid

• gas

Multiple Choice

What is the state of matter of water vapor?

• solid

• liquid

• gas

Multiple Choice

What is the state of matter of Dr. Pepper?

• solid

• liquid

• gas

Multiple Choice

A solid can turn into a gas if enough ______ is added.

• mass

• thermal energy

• matter

Multiple Choice

The way molecules in a substance move around relative to each other is called what?

• molecular attraction

• energy

• freedom of movement

Multiple Choice

A pull between two molecules that is always the same for a substance is called _____.

• molecular attraction

• energy

• freedom of movement

Multiple Choice

What is the relative size of things called?

• molecule

• refute

• phase

• scale

Chemical Reactions

Multiple Choice

Which of the following represent the law of conservation of mass?

Multiple Choice

Water is boiled and steam is produced. This is a physical change because the water particles...

• have turned into something new

• are still water particles

• have reacted with eachother

• have been destroyed

Multiple Choice

Eggs cooking and baking a cake are examples of a

• physical change

• chemical change

Multiple Choice

Salt dissolving and ice melting are examples of a

• physical change

• chemical change

Multiple Choice

A chemical reaction occurred. Which is the ending substance?

Multiple Choice

The two substances are

• the same

• different

Multiple Choice

During a chemical reaction, mass

• increases

• decreases

• stays the same

Vocabulary

Multiple Choice

What are the tiny pieces that all matter is made of called?

• atoms

• molecules

• products

• reactants

Multiple Choice

What is a group of atoms joined together in a particular way?

• atoms

• molecules

• reactant

• product

Multiple Choice

What is the starting substance that is part of a chemical reaction called?

• reactant

• product

• substance

Multiple Choice

What is the ending substance that is made during a chemical reaction called?

• reactant

• product

• substance

Multiple Choice

What is something that is made of all the same atoms or groups of atoms called?

• reactant

• product

• substance

Multiple Choice

What are the letters and numbers showing the types and numbers of atoms in a chemical reaction called?

• chemical reaction

• model

• scale

• chemical formula

Multiple Choice

What is a process in which atoms rearrange to form new substances?

• chemical reaction

• model

• scale

• chemical formula

Multiple Choice

What is an object, diagram, or computer program that helps us understand something by making it simpler or easier to see?

• chemical reaction

• model

• scale

• chemical formula

Multiple Choice

What does it mean to change the order or position of something?

• property

• rearrange

• scale

Traits and Reproduction

Multiple Choice

Tt is an example of

• homozygous

• heterozygous

Multiple Choice

YY and pp are examples of

• heterzygous

• homozygous

Multiple Select

Pick two. Dominant genes...

• always shows up when present

• is a capital letter

• can be a hidden trait

• is a lowercase letter

Multiple Select

Pick two. Recessive genes...

• always shows up when present

• is a capital letter

• can be a hidden trait

• is a lowercase letter

Multiple Choice

The offspring of asexual reproduction receives

• genetical material from one parent

• genetic material from two parents

• genetical material from an outside source

Multiple Choice

Brown eyes are dominant. Father is heterozygous with brown eyes. What is his genotype?

• BB

• bb

• Bb

Multiple Choice

Brown eyes are dominant. Mother is homozygous with blue eyes. What is her genotype?

• BB

• Bb

• bb

Multiple Choice

To have offspring with different traits, which type of reproduction should occur?

• cloning

• asexual reproduction

• sexual reproduction

Multiple Choice

You have 28 chromosomes in your body cells. How many did you inherit from each parent?

• 14

• 16

• 28

Multiple Select

Select two phenotypes.

• PP

• Pp

• pink flower

• blue flower

Multiple Select

Select two genotypes.

• PP

• Pp

• pink flower

• blue flower

Multiple Choice

Traits are passed down from your parents.

• True

• False

Multiple Choice

You get __ type(s) of chromosomes from each parent.

• 1

• 2

• 14

• 28

Vocabulary

Multiple Choice

What provides instructions for making proteins?

• chromosomes

• gene

• protein

Multiple Choice

What is a long piece of DNA that contains many genes?

• alleles

• chromosomes

• gene

• proteins

Multiple Choice

Having the same gene versions

• heterozygous

• homozygous

Multiple Choice

Having different gene versions

• heterzygous

• homozygous

Multiple Choice

What is a random change to a gene that sometimes results in a new trait?

• protein

• inherit

• mutation

Multiple Choice

Where are genes found in a cell?

• Mitochondria

• Proteins

• Nucleus

Multiple Choice

The parts of the cell that build protein molecules based on instructions based on instructions from genes

• ribosomes

• proteins

• genes

Multiple Choice

What is a characteristic that all members of a species have?

• feature

• trait

Multiple Choice

What is a specific characteristic of an individual organism?

• feature

• trait

Ocean, Atmosphere, and Climate

Multiple Choice

What is the transfer of energy through direct contact (touch)?

• conduction

• convection

• radiation

Multiple Choice

What is the transfer of energy through waves?

• conduction

• convection

• radiation

Multiple Choice

What is the transfer of energy through a medium such as a liquid or gas?

• conduction

• convection

• radiation

Multiple Choice

What is happening in number 1?

• Condensation

• Precipitation

• Evaporation

Multiple Choice

What is happening in number 2?

• Condensation

• Precipitation

• Evaporation

Multiple Choice

What is happening in number 3?

• Condensation

• Precipitation

• Evaporation

Multiple Choice

The sun heats the ocean and Earth evenly everywhere.

• True

• False

Multiple Choice

The equator receives the most energy.

• True

• False

Multiple Choice

The temperature on the east coast of the United States will

• increase

• decrease

• stay the same

Multiple Choice

Which city will receive warmer temperatures?

• Harbin

• Chengdu

Multiple Choice

Colder ocean currents come from the

• poles

• equator

• coast

Multiple Choice

Which city will receive colder temperatures?

• Alesund

• Khatyrka

Multiple Choice

Why will Alesund receive colder temperatures?

• Warm ocean currents coming from the equator

• Warm ocean currents coming from the poles

• Cold ocean currents coming from the equator

• Cold ocean currents coming from the poles

Multiple Choice

Which place will have warmer temperatures?

• Alpha

• Delta

Multiple Choice

Why will Delta receive warmer temperatures?

• Warm ocean currents coming from the equator

• Warm ocean currents coming from the poles

• Cold ocean currents coming from the equator

• Cold ocean currents coming from the poles

Multiple Choice

Colder air temperatures have

• less energy

• more energy

• the same amount of energy

Multiple Choice

Lake Charles is 78 degrees in spring. What is the source for most of the energy that causes this temperature?

• hurricanes

• coal and oil

• trees

• the sun

Vocabulary

Multiple Choice

The ability to make things move or change

• energy

• movement

• change

• cause

Multiple Choice

The imaginary line that divides the Earth into northern and southern hemispheres

• longitude

• latitude

• equator

• poles

Multiple Choice

A climate pattern that make temperatures warmer by changing the direction of the ocean currents

• La Nina

• El Nino

Multiple Choice

Ocean water flowing in a continuous path

• Waves

• Ocean Currents

• Hurricanes

Multiple Choice

A measure of how hot or cold something is

• effect

• climate

• temperature

• solar

Multiple Choice

A giant pattern of moving water from place to place in a circle

• hurricane

• gyre

• prevailing winds

Multiple Choice

Winds that move in one direction and are strong enough to push ocean currents

• prevailing winds

• gyre

• hurricane

Fill in the Blank

To move from one place to another

Weather Patterns

Fill in the Blank

What is the primary energy source for all weather and climate?

Multiple Select

Select two. Why is weather forecasting important?

• to predict extreme weather

• because it's cool

• to prepare for driving conditions

• to know when to have a picnic

Multiple Choice

What type of front is pictured?

• cold front

• warm front

• occluded front

• stationary front

Multiple Choice

What type of front is pictured?

• cold front

• warm front

• occluded front

• stationary front

Multiple Choice

What type of front is pictured?

• cold front

• warm front

• occluded front

• stationary front

Multiple Choice

What type of front is pictured?

• cold front

• warm front

• occluded front

• stationary front

Multiple Choice

A warm front includes

• heavy rain, severe weather

• rain or drizzle

• cloudy with patches of rain

• days and days of rain, snow, or clouds

Multiple Choice

A cold front includes

• heavy rain, severe weather

• rain or drizzle

• cloudy with patches of rain

• days and days of rain, snow, or clouds

Multiple Choice

A stationary front includes

• heavy rain, severe weather

• rain or drizzle

• cloudy with patches of rain

• days and days of rain, snow, or clouds

Multiple Choice

An occluded front includes

• heavy rain, severe weather

• rain or drizzle

• cloudy with patches of rain

• days and days of rain, snow, or clouds

Multiple Choice

Clouds form during

• evaporation

• condensation

• precipitation

Multiple Choice

Select three. An area of low pressure will experience what types of weather?

• mostly cloudy

• sunny

• rain

• thunderstorms

• clear skies

Multiple Choice

Does warm air rise or fall?

• fall

• rise

• neither

Multiple Choice

Warm air is

• more dense and falls

• less dense and falls

• more dense and rises

• less dense and rises

Multiple Choice

It gets warmer when you move up the atmosphere because you are getting closer to the Sun.

• True

• False

Multiple Choice

What layer of the atmosphere does weather take place?

• Mesophere

• Troposphere

• Exosphere

• Stratosphere

Vocabulary

Multiple Choice

The mixture of gases surrounding a planet

• atmosphere

• hydrosphere

• lithosphere

• biosphere

Fill in the Blank

Liquid water droplets in the air

Fill in the Blank

The ability to make things move or change

Multiple Choice

A measure of how much water vapor is in the air

• humidity

• condensation

• cloud

• precipitation