Tell Me Why? Leaves Change Color

The colors in a leaf are made from chemicals called--

• solvents

• methanol

• pigments

• molecules

In what seasons do leaves primarily have lots of green pigment?

• Winter and Spring

• Spring and Summer

• Summer and Fall

• Spring and Fall

The green pigment in leaves has a special name. What is it?

• Chlorophyll

• Carotenoids

• Photosynthesis

• Starch

Photosynthesis is a process that helps a plant make this kind of food for itself...

• minerals and carbon dioxide

• energy and light

• starch and sugar

• oxygen and water

During the fall, trees stop producing what chemical?

• chlorophyll

• pigment

• photosynthesis

• carbon

Scars sometimes form at the base of a leaf during fall trapping sugar. This causes a leaf to turn...

• yellow

• red

• orange

• green

True or False: Trees always lose their leaves during winter months.

• True

• False

Pine needles often have a heavy wax coating. Why?

• To keep the needles from freezing.

• To allow the needles to create more pigment.

• To trap more sugar in the needles for food.

• To keep bugs from eating them.

True or False: The broad leaves on deciduous trees are more fragile than the needles on coniferous trees.

• True

• False

True or False: The needles on coniferous trees never turn yellow and orange.

• True

• False