Water on Earth
This percentage of Earth's surface is covered by water
70%
The conditions of the atmosphere at a specific time and place is called
Weather
This is the energy source that powers both the water cycle and ocean circulation
Sun
This is the process plants use to make their own food using sunlight, water, and carbon dioxide
Photosynthesis
Water, trees, sunlight, and wind are all examples of this type of natural resource.
Renewable Resource
This is the only percentage of Earth's water that is freshwater
3%
This is what causes wind. Warm air rises and this rushes in to replace it
Cold air
These large moving streams of water carry heat from the tropics toward the poles.
Ocean currents
Plant 4 grew in sand instead of soil and did poorly. This is what the sand was missing that the plant needed.
Nutrients
Coal, oil, and natural gas are examples of this type of natural resource. Once they are gone, they are gone forever
Non-renewable resource
This step of the water cycle is when plants release water vapor through their leaves.
Transpiration
At this percentage of relative humidity, the air is completely full of water vapor and rain or dew is likely
100%
This global system of ocean currents moves warm water near the surface and cold water in the deep ocean.
great ocean conveyor belt
This is the very first stage of plant growth, when a seed begins to sprout
Germination
This is the number one cause of illness and death in young children worldwide, connected to water quality
Unsafe drinking water
This underground layer of rock stores a large amount of groundwater and supplies much of our drinking water
aquifer
This type of precipitation forms when snow melts in a warm air layer and then refreezes before hitting the ground as tiny ice pellets
Sleet
The ocean has absorbed about this percentage of the extra heat trapped by greenhouse gases
90%
In the 4-plant experiment, this plant is expected to grow the best because all of its needs are met
Control Group
This method of watering crops places water directly at the plant roots and wastes far less water than sprinklers
Drip Irrigation
This is the step of the water cycle when water soaks into the ground rather than flowing over it
infiltration
This type of cloud is thin and wispy, found very high up, and made of ice crystals
Cirrus
This is the term for the repeating cycle of rising warm water and sinking cool water that drives ocean circulation.
Convection
This format is used to write a testable prediction: If ________, then ________ because ________.
Hypothesis
These are the 3 R's of conservation
Reduce, Reuse, Recycle