| vocabulary | More Vocabulary | Fill in the blank | Short answer | Essay |
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| 20 | 20 | 20 | 20 | 20 |
| 30 | 30 | 30 | 30 | 30 |
| 40 | 40 | 40 | 40 | 40 |
| 50 | 50 | 50 | 50 | 50 |
| Final Question | ||||
The cycle in which gas in the air is fixed into a form that plants can use.
The cycle in which gas in the air is fixed into a form that plants can use.
nitrogen cycle
Water turning into water vapor.
Water turning into water vapor.
Evaportion
Cycle in which water moves through the environment.
Cycle in which water moves through the environment.
Water cycle
Water vapor turning into water is called...
Water vapor turning into water is called...
condensation
Cycle in which plants turn gas in the air into oxygen.
Cycle in which plants turn gas in the air into oxygen.
carbon-oxygen cycle
The process of releasing energy from food.
The process of releasing energy from food.
respiration
Plants losing water through their stomata is called...
Plants losing water through their stomata is called...
transpiration
When water falls from the clouds, it is called...
When water falls from the clouds, it is called...
precipitation
What provides energy fro plants to grow?
What provides energy fro plants to grow?
respiration
Plants release this into the atmosphere as a byproduct.
Plants release this into the atmosphere as a byproduct.
oxygen
Plants and animals release _______ as a product of respiration.
Plants and animals release _______ as a product of respiration.
carbon dioxide
During ________, plants use sunlight, water, and carbon dioxide to make their own food.
During ________, plants use sunlight, water, and carbon dioxide to make their own food.
photosynthesis
___________ and ______ return to the soil through animal waste.
___________ and ______ return to the soil through animal waste.
ammoniaand nitrates
Plants make proteins from _______ in the soil.
Plants make proteins from _______ in the soil.
nitrates
In the process of _________. bacteria and fungi break down a dead organism's tissues and use some of the carbon as food.
In the process of _________. bacteria and fungi break down a dead organism's tissues and use some of the carbon as food.
decay
What is petroleum is made from?
What is petroleum is made from?
decayed organisms
What does burning fuels in cars and factories do to the carbon - oygen cycle?
What does burning fuels in cars and factories do to the carbon - oygen cycle?
It upsets the balance of it.
Water falls to the Earth as rain after what happens first?
Water falls to the Earth as rain after what happens first?
Water vapor condenses into the clouds.
How do chemicals and pesticides get into the groundwater supplies?
How do chemicals and pesticides get into the groundwater supplies?
through rain
How do plants return water to the environment?
How do plants return water to the environment?
through transpiration
Why do rabbits eat lots of plants and not drink water?
Why do rabbits eat lots of plants and not drink water?
The water they need is in the leaf.
Why do scientists think burning fuel is bad for the air?
Why do scientists think burning fuel is bad for the air?
They observed that carbon dioxide is not being converted to oxygen.
What would happen if the air in the upper atmosphere were warmer than water vapor in the air?
What would happen if the air in the upper atmosphere were warmer than water vapor in the air?
Condensation could not occur and there would not be any precipitation.
Do rain puddles disappear quicker on a cloudy day or clear day and why?
Do rain puddles disappear quicker on a cloudy day or clear day and why?
Clear day because the sun's heat helps with evaporation.
If plants and animals lived forever, what would happen to the Earth's soil?
If plants and animals lived forever, what would happen to the Earth's soil?
Nothing would die and decay, so there would be less nitrates returning to the soil.
What are four ways to help keep the carbon-oxygen cycle in balance?
What are four ways to help keep the carbon-oxygen cycle in balance?
1. You can plant trees and gardens. 2. You can carpool or ride a bike instead of driving. 3. Don't burn leaves. 4. Dress warm in the winter instead of turning up the thermostat.
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