
The Rainforest
1 The
rainforest is green and growing and lively. In the rainforest it is warm all
year long, and there is lots of rain, often over 100 inches of rain per year.
Since sunshine and rain are two of the things that plants need to grow, you can
see why the rain forest is home to many, many plants. In fact, more than half of
the world's different species of plants live in the rainforest.
2 The major
plants in a tropical rainforest are trees. There are more types of trees in the
rainforest than there are anywhere else. Rainforest trees have tall straight
trunks and smooth bark. The taller ones have a canopy of leaves up to 100 feet
above the forest floor. The lower ones have a canopy of leaves about 60 feet
above the ground.
3 Another
type of rainforest plant is the epiphyte. Epiphytes are plants that grow on
trees instead of on the ground. Orchids, bromeliads, and ferns are rainforest
epiphytes. Bromeliads are interesting plants that have leaves that form a
holding tank for water. These leaf tanks can hold from less than a pint to more
that 10 gallons of water. These little tanks of water are home to whole
communities of small creatures including bacteria, mosquitoes, tadpoles, and
other animals. There are also tiny epiphytes that live on a leaf including
mosses, liverworts, and lichens.
4 Vines are
also important rain forest plants. Lianas are woody, climbing vines. They start
as a ground plant and grow up the trees to the canopy. There are around 2,500
species of rainforest vines. The pitcher plant is a climbing plant that traps
bugs in its pitcher for dinner.
5 There are
large tropical rainforests in South America, Africa, and Asia. At one time
rainforests covered 14 % of the Earth's surface, but now the area has been
reduced to only 6%. This is because large areas of rainforest have been cleared
to build farms and ranches, and because other large areas have been cleared as
trees were harvested. This is the same thing that happened to most of our North
American forests many years ago.
Answer the following:
| 1. |
This article is mainly about
a Brazil
nuts
b Rainforest
trees
c Rainforest
plants
d The
South American rainforest
|
|
| 2. |
A plant that is helping to cure leukemia is
a Rosy
periwinkle
b Bromeliad
c Pitcher
plant
d Brazil
nut
|
|
| 3. |
The Amazon rainforest produces one-fifth of the world's
a Oxygen
b Nitrogen
c Hydrogen
d Potassium
|
|
| 4. |
The leaves of tall rainforest trees make up the
a Canopy
b Trunk
c Epiphyte
d Forest
floor
|
|
| 5. |
Today, rainforest covers about _____ of the Earth's surface.
a 6%
b 14%
c 200%
d 1%
|
|
| 6. |
Epiphytes are
a Pitcher
plants
b Plants
that need little water
c Plants
that grow on tree trunks
d Vines
|
|
| 7. |
Since it is warm and rainy in the rainforests, we can tell that the
rainforests are probably located in which part of the world?
a Equator
b Great
Plains
c Arctic
d Europe
|
|
| 8. |
Today we use _____ types of fruit and vegetable from the rainforest
than the Rainforest Indians used in the past.
a About
the same
b Can't
tell from the article
c Less
d More |
|