When running long distances your body needs a backup source of fuel when you're depleted of carbs. When you eat you use --------- energy to make ----------- energy.

A gas lawnmower changes ------- energy to -------- energy.

A food chain starts with the ---------- to help humans get energy.

------ is a factor that limits the growth of trees in a desert ecosystem.

Water will always take the ----- of a container.

Water weeds and hydroponic plants will get nutrients from the -------- of a pond so it can make its own food.

----- is an example of matter, even you are an example of matter, you have mass and occupy space.

The ------ provides energy to trees, while trees provide food for other organisms.

All ----- get their energy from the sun.

--------- helps a plant transport important nutrients through the plant.

Some plants need -------- to help provide materials for its growth.

When leaves move on a windy day, this is evidence that supports that gas particles are too --------- to be seen but have mass.

This is an example of a:

Consumers must ------------------------------------------------ in order to survive.