Science 4.1-4.4 Flashcards
(44 cards)
A living thing
Organism
The green matter in plants which traps sunlight energy; gives plants the ability to produce its own food
Chlorophyll
The food making process in green plants
Photosynthesis
The simple sugar made by green plants
Glucose
An organism that is able to produce its own food by using sunlight energy
Producer
An organism that depends on producers for food energy
Consumer
Layer of dead and decaying leaves on the forest floor
Leaf litter
The soft organic material in soil made from the decayed remains of living things
Humus
Output products of photosynthesis
Oxygen and glucose
Inputs needed for photosynthesis to occur
Water, sunlight and carbon dioxide
The leaves and branches of a tree
Crown
The stem of a tree
Trunk
The protective layer on the outside of the trunk of a tree
Bark
The pArt that anchors the tree and draws water and minerals from the soil
Root
Layers of wood in the trunk; each one represents one year of the tree’s life
Annual rings
A tree with narrow leaves, or needles
Needleleaf tree
A tree that keeps its leaves throughout the year
Evergreen tree
A tree that produces seeds in cones
Conifer tree
Why do a tree’s roots need to be as large as it’s crown?
To anchor the tree in the ground
How can a river change the soil near a riverbank?
It can wash soil away or bring new soil
Why are the trees annual rings wider during years with plenty of sunlight and water?
It shows how much they have grown
A tree having flat, broad leaves and producing seeds
Broadleaf tree
A tree that loses its leaves and is bare for a part of the year
Deciduous tree
A plant structure that holds and protects seeds
Fruit