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Leaf me alone
The Trunk
Trees
Photosynthesis
Miscellaneous
100
This kind of leaf has a sharp saw like edge.
What is a saw-tooth leaf?
100
The outermost layer of the trunk that protects the tree.
What is the bark?
100
The top of the tree that makes food and seeds.
What is the crown?
100
The part of the tree where photosynthesis happens.
What is the leaf?
100
One reason trees shed their leaves in the winter.
What is lack of sunlight, lack of water, or colder temperatures.
200
This kind of leaf has venation that looks like a hand.
What is a palmate leaf?
200
This layer of the trunk is at the center and gives the trunk strength and stability.
What is the heartwood?
200
This middle of the tree.
What is the trunk?
200
Leaves need this from outer space to start photosynthesis.
What is sunlight?
200
The green substance leaves lose in the fall that "reveals" their bright fall colors.
What is chlorophyll?
300
This part of the leaf allows oxygen to leave and carbon dioxide to enter the leaf.
What is the stomata?
300
This layer of the trunk allows root sap to travel UP the tree.
What is the Xylem?
300
These provide stability by anchoring the tree.
What are roots?
300
Leafs need this from the air to complete photosynthesis.
What is carbon dioxide?
300
This type of seed has one cotyledon.
What is a monocot?
400
The edges of the leaf are called this.
What is the margin?
400
This layer of the trunk allows sugar sap to travel DOWN the trunk.
What is the Phloem?
400
This type of tree loses its leaves in the fall.
What is a deciduous tree?
400
Leaves produce this gas during photosynthesis.
What is oxygen?
400
This type of seed has two cotyledons.
What is a dicot?
500
The stem of the leaf is also known by this name.
What is the petiole?
500
This very tiny layer creates new xylem and phloem.
What is the cambium?
500
This type of tree produces cones.
What is a coniferous tree?
500
Leaves produce this sugar during photosynthesis.
What is glucose?
500
One way that seeds spread.
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