IA 2 Review A

A

100

If there were suddenly an increase in the number of plants, what would happen to the amount of Carbon Dioxide in the air and to global warming?

More plants would lead to less carbon dioxide because they use it for photosynthesis. Less carbon dioxide would mean reduced global warming.

200

Even though we know that renewable resources are cleaner, the majority of electricity is still produced from what?

Fossil Fuels

300

What does differentiate mean?

Tell the difference between

400

If a resource is limited or endless and can be reused or recycled, it is what type of resource? Renewable or non-renewable?

Renewable

500

Reducing the amount of sulfer dioxide a factory pumps into the air, helps to reduce what coming down from the clouds?

Acid Rain

B

100

Name 3 energy sources that don't pollute the air.

1 must be non-renewable and 2 are renewable

NR-Nuclear

R-solar, wind

200

Sodium chloride is formed when sodium and chlorine have a chemical reaction and bond together. Therefore, sodium chloride can be called a ______________.

element, mixture, compound, atom

Compound

300

Using a microscope, if a substance is a pure substance, it will look the __________no matter what section you look at. 

Same

400

Which type of relationship between animals means that they both benefit from their relationship?

Parasitism, mutualism, competition, commensalism

Mutualism

500

In a closed chemical reaction, the mass of the products will equal the mass of the _____________.

Reactants

C

100

If an animal uses another animal as its food source, this type of relationship is called ________________.

predator-prey

parasitic

mutualistic

commensalistic

Parasitic

200

Earth has 3 spheres.

Atmosphere means____________

Biosphere means______________

Geosphere means_____________

Atmosphere means air

Biosphere means living and non living things.

Geosphere means Earth/soil. 

300

The Industrial Revolution in 1750 caused many ____________to be cut down which reduced the forests' ability to take _________  ___________ out of the air.

trees

carbon dioxide

400

Biotic factors are factors that are ___________.

Protozoans are biotic factors.

Living or were once living

500

C₆H₁₀O₅ + 6O₂+heat ---yields-->6CO₂+ 5H₂O

Draw the reactants!

Oxygen is black circle

Carbon is empty triangle

Hydrogen is empty circle

See Mr. Lowek's Drawing

The reactants are:

C₆H₁₀O₅ + 6O₂+heat

D

100

Which number set varies the least?

A--1,5,10

B--1,24,87

A--1,5,10

Varies the least because the numbers are closer together than 1,24,87

200

If an animal disappears from a food chain, there will be less ______________for animals (above) who eat that animal and the population of animals (below) eaten by that animal will ____________.

competition

increase

300

To have geothermal energy, you must be near volcanoes that have hot ___________inside them. 

Magma

400

When fossil fuels are burned, there is less of the element _________being stored in the ground and more of the element ________in the atmosphere. (think carbon cycle)

Carbon

Carbon

500

If an equation looks like this

2A₃+2B_2---->A₆B₄

We know that a _________change occured because there a new substance was made called A₆B_{4 .}

Chemical change

2A₃+2B_2---->A₆B₄

Reason: Elements are bonded differently on the right side 

E

100

The disadvantages of hydropower are __________buildup which causes a decrease in the amount of river ecosystems.

Sediment

200

On the periodic table, elements within the same ________have similar properties. 

Group (vertical)

Period (horizontal)

Group (vertical)

300

In digestion, stomach acid turning food into nutrients is a ________change.

Physical

Chemical

Chemical

Reason: Creates new substance

400

Heat is released when wood burns because burning releases _________energy stored in ___________bonds.

Heat

Chemical

500

A bottle that was broken into many small pieces is an example of what type of change?

Physical

Chemical

Physical---no new substance formed