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Science pp. 82 - 87

Across
Nutrients that the plants need are taken in from the __.
Carbon dioxide is taken from the __ by plants.
Plants use the sun, water, and carbon __ to make food.
Low-lying areas in farmland may experience too much water called __.
A system of growing plants in water instead of soil is called __.
Some of the nutrients plants need to survive include nitrogen, calcium and ___.
Down
Approximately 7 __ people live on Earth today.
What is made during photosynthesis for plants to use?
In hydroponics, nutrients are added to the __ in which it grows.
Dry places and places with long periods of no rain called __, are not suitable for crops.
Plants use sugar as a source of energy to help them grow leaves, stems, and roots.