Leaves
Which part of the tree makes food?
Leaves
What is carbon dioxide ?
A gas that leaves need for photosynthesis
In fall the temperature becomes...
a. cooler
b. warmer
c. hot
d. cold
a. cooler
What do the trees look like in winter?
They are bare
Is summer time playtime for leaves?
No its work, work, work for leaves
What do leaves need to make food?
Water, Sunlight, chlorophyll and carbon dioxide
What is a Chemical?
Something made by a chemical process. Solids, Liquids and Gas are made up of chemicals
In Fall the days get...
a. longer
b. change color
c. hotter
d. shorter
d. shorter
What do trees use for food in winter?
They used the stored food
How do leaves make sugar?
They make sugar from water, carbon dioxide, and sunlight
What do leaves do with the sugar?
They send it to the tree's roots, branches, and buds.
What is energy?
The ability to do work
Trees get__________ sunlight
a. a lot of
b. less
c. no
d. more
b. less
What changes occur in the weather in Spring?
Snow melts and the rains come
Why are leaves green in summer?
They are full of chlorophyll.
causes leaves to make energy from the sun to make the tree grow
What is chlorophyll?
It is a chemical used for photosynthesis.
In Fall leaves stop making
a. chlorophyll
b. sap
c. flowers
d. stems
a. chlorophyll
Why does the author say the cycle begins again?
Every Spring the leaves use water, chlorophyll, carbon dioxide and sunlight to make food.
Why do the orange, yellow or brown chemicals not show in summer?
The green chlorophyll hides them.
Why do trees store sugar?
trees store energy that chlorophyll made during the summer to help it last through autumn and winter
What is photosynthesis?
The process by which chlorophyll in plants transforms sunlight, water, air, and nutrients into food.
Trees drop their leaves in the Fall
a. to make food
b. to get new leaves
c. to keep themselves safe
d. to grow nes stems
c. to keep themselves safe
What protects the sap from freezing?
A trees, roots, trunk, and branches protect the sap from freezing.
The chemical that makes leaves orange is also found in which vegetable?
Carrots