What is it? Why do they need it?
Air / Plants need air, to help them make food and grow.
What is it? Why do they need it?
Soil / Plants need soil to anchor their roots and to get nutrients.
What is it? Why do they need it?
Right temperature / Plants need their own correct temperature.
What is it? Why do they need it?
Water / Plants need water to grow. Without water, they would dry out and die.
What is it? Why do they need it?
Space / Plants need space to grow.
What is it? Why do they need it?
Sunlight / Plants need sunlight to make their food.