1. SCIENCE
Form 2

2. SKIN
Skin holds everything together. It also:
protects our bodies helps keep our
bodies at just the right temperature
allows us to have the sense of touch
Don't Miss Your Epidermis The skin is
made up of three layers, each with its
own important parts. The layer on the
outside is called the epidermis (say: eh-
pih-dur-mis). The epidermis is the part
of your skin you can see.

3. PHOTOSYNTHESIS
Green plants are producers. This means that they can
survive without animals! They can make lots of organic
chemicals from a few simple inorganic chemicals. They
need simple things like carbon dioxide and water and can
make complex things like sugar, starch, fat, and proteins.
Plants get their nutrients from the environment. Carbon
dioxide comes from the air (unless they are aquatic plants,
in which case they get it from the water surrounding them).
They get water from the soil. They also need other
inorganic nutrients like nitrate, sulphate and phosphate. A
few plants cannot get nitrate out of the soil so they have to
eat animals to get the nitrogen which they must have for
growth.

4. FOOD PYRAMID
Symbols, such as a pyramid, illustrate how
the pieces of a healthy diet fit together. The
base of the pyramid is typically made up of
foods that should be the bulk of your
healthy diet. In contrast, foods you should
eat in smaller amounts or less frequently are
shown in the smaller sections of the
pyramid. The same principle applies to the
dinner plate — half of the plate consists of
fruits and vegetables, which should be the
bulk of your diet.

5. SKELETONS
Hydrostatic Skeletons:
- consists of fluid held under pressure in a
closed body compartment
- main type of skeleton in most Cnidarians,
Flatworms, Nematodes and Annelids
- can control their form and movement by
changing the shape of the fluid filled
compartments with muscles in the body wall
- offer no protection of support for large
land animals

6. GRAVITATIONAL FORCE
What is the Gravitational Force?
This is NOT a force of CONTACT.
Any object on the Earth or at least
close to Earth, will experience a
gravitational force. For example,
when one shoots a basketball, the
force of gravity acts to pull the ball
back to the floor.

7. AIR PRESSURE
Air pressure is the force exerted on
you by the weight of tiny particles of
air (air molecules). Although air
molecules are invisible, they still have
weight and take up space. Since
there's a lot of "empty" space
between air molecules, air can be
compressed to fit in a smaller volume.