Plants get their energy from the sun through a process called photosynthesis.

Here's a breakdown:

* Sunlight: Plants have a special green pigment called chlorophyll in their leaves. Chlorophyll captures sunlight energy.

* Carbon Dioxide: Plants take in carbon dioxide from the air through tiny openings called stomata on their leaves.

* Water: Plants absorb water from the soil through their roots.

* Photosynthesis: Inside the leaves, the plant combines sunlight, carbon dioxide, and water to create glucose (a type of sugar) and oxygen. This glucose is the plant's food source, providing it with energy to grow and thrive. The oxygen is released back into the atmosphere.

So, in short, plants use sunlight to convert carbon dioxide and water into energy-rich food.