These are what all living things are called.
What are organisms?
The three main things needed for photosynthesis are these.
What are sunlight, water, and carbon dioxide?
Each of these rings inside a tree’s trunk represents one year of growth.
What is an annual ring?
These flowers make up the center of a composite flower head.
What are disk flowers?
This soft organic material in soil is made from decayed plants and animals.
What is humus?
This kind of living thing can make its own food.
What is a producer (green plant)?
These are the two substances plants make through photosynthesis.
What are oxygen and glucose?
This outer covering protects a tree from injury and disease.
What is bark?
This is the female part of a flower that receives pollen. (shown as 4. on the diagram)
What is the pistil?
This is one way humus helps soil stay healthy.
What is by adding nutrients?
This gas released by plants is what humans need to breathe.
What is oxygen?
This process allows green plants to turn light energy into food.
What is photosynthesis?
This type of tree has no branches, annual rings, or bark.
What is a palm tree?
This part protects the flower bud before it opens. (shown as 1. on the diagram).
What is the sepal?
This is another way humus helps soil support plant life.
What is by holding water for roots?
Without these living things, humans and animals could not survive because they produce food and oxygen.
What are plants?
This gas is taken in by plants during photosynthesis.
What is carbon dioxide?
Scientists determine a tree’s age by doing this.
What is counting its annual rings?
This is the male part of a flower that produces pollen. (shown as 3. on the diagram).
What is the stamen?
Healthy soil is important because it provides these two things for plants.
What are water and nutrients?
This is the simple sugar made by green plants during photosynthesis.
What is glucose?
This is how sunlight helps a plant make its own food.
What is by providing the energy for photosynthesis?
These circular layers show how much a tree grows each year.
What are annual rings?
This colorful part of a flower attracts insects. ( shown as 2. on the diagram)
What is the petal?
If soil loses its humus, this happens to plants.
What is that they grow poorly due to lack of nutrients and moisture?