The life cycles of plant
The transfer of energy
The reproduction of animals
The number of mice would decrease.
The number of mice would increase.
The amount of grass would decrease.
The number of owls would increase.
Gravity is causing the washers to fall towards the iron nail.
Thermal energy heats up the iron nail.
Electricity is flowing through the washers.
Electricity makes the iron nail magnetic.
A burning candle.
Vinegar and baking soda are combined to make carbon dioxide.
An ice cube melts.
A plant makes sugar through the process known as photosynthesis.
The metal and plastic absorb the heat.
The plastic is a good conductor of heat.
The metal is a good conductor of heat.
Neither plastic or metal are good conductors of heat.
Its spiny needles
Its shallow roots
Both A and B are correct
Neither A or B are correct
Windy and rain
It is in the shape of a sphere
It has a moon
Much of its surface is covered with water
It has an elliptical orbit
A volcanic eruption
A weathered rock
Using sandpaper on wood
They fall as rain.
The become apart of cumulonimbus clouds.
They accumulate as groundwater.
They evaporate into the atmosphere.
They remain as they are.
They decompose and become apart of the soil.
They are washed away into creeks and rivers.
By drinking water through their roots
By using energy from the sun
By eating other plants
By absorbing heat from the ground
Cutting down trees
Covering the fields with plastic
Having animals graze on the fields
The Earth's tilt
The moon's orbit around the Earth
The rotation of Earth on its axis
The sun orbiting the Earth
Those strings are vibrating faster.
Those strings are vibrating slower.
Those strings are better conductors of sound.
The other strings are absorbing the sound.