Show:
Matter
Energy
Environmental Impacts
Experimental Design
Surprise
100
The center of the atom is made of
protons and neutrons
100
List one type of nonrenewable energy
Natural Gas Fossil Fuels Coal Nuclear Energy
100
True or false: Plastics break down quickly upon being deposited in a landfill
FALSE
100
A student wants to study how different types of water (salt water, sugar water, etc) effect the number of buds on a rose bush. The independent variable in the experiment is ____________.
Type of water
100
What is a polymer made of?
a chain of monomers
200
The state of matter in which molecules are most closely packed is....
solid
200
A wind turbine turns ___________ energy into __________ energy
mechanical energy --> electrical energy
200
List one environmental consequence of acid rain.
Breakdown of buildings or statues Soil acidification Lake acidification
200
A student wants to study how different types of water (salt water, sugar water, etc) effect the number of buds on a rose bush. The dependent variable in the experiment is ____________.
The number of buds on each plant
200
What kind of polymer will be stronger- crosslinked or branched
crosslinked
300
A neutral atom of carbon has __________ electrons
6 electrons
300
What kind of energy comes from the breakdown or combination of the nuclei of atoms?
nuclear energy
300
How does burning fossil fuels relate to an 'enhanced' greenhouse effect?
Fossil fuels release greenhouse gases, which trap more heat in the atmosphere
300
A student wants to study how different types of water (salt water, sugar water, etc) effect the number of buds on a rose bush. List one variable that the student should control, or keep constant.
amount of water starting height of plant amount of sunlight each plant gets etc.
300
When a piece of wood is burned, ___________ energy is transformed to _________ and ________ energy.
chemical energy is transformed to light and heat
400
Two nonmetal atoms may share electrons to form_________ bonds
Covalent
400
Describe the three step energy transformation that happens in a basic circuit
chemical --> electrical --> light or heat
400
Draw an accurate diagram of the earth, the atmosphere, and the greenhouse effect.
Must show some energy leaving the earth AND some being trapped
400
A student wants to study how different types of water (salt water, sugar water, etc) effect the number of buds on a rose bush. What should the student's control group be?
A rose bush that is given regular water
400
If a substance has a pH of 6, it is an (acid/base/neither)
acid
500
As a liquid heats up, the substance (absorbs/releases) energy and becomes (more/less) dense
ABSORBS ENERGY LESS DENSE
500
If a skateboarder is moving back and forth on a half-pipe, what kind of mechanical energy will he have halfway down the ramp?
Kinetic AND potential
500
List one source of acid rain and the chemical it releases
car exhaust- nitrogen compounds coal burning factories- sulfur compounds
500
A student wants to study how different types of water (salt water, sugar water, etc) effect the number of buds on a rose bush. What are two things the student could do to ensure the experiment is valid?
use multiple trials use a control of plain water
500
What substance do acids give off in water?
H+ (hydrogen ion)