SCIENCE REPORTS

1. THERE ARE FIVE TYPES OF BONE FRACTURE

(i) A fracture that a bone does not break through is called a greenstick fracture.

(ii) A fracture that the bone breaks through the skin is a compound fracture.

(iii) A fracture that shatters into a lot of pieces is called comminuted.

(iv) A fracture that breaks in more than one place is called multiple fracture.

(v) A fracture that is broken all the way through but the skin is not broken is called a simple fracture.

2. PHOTOSYNTHESIS

When plants take in water, sunshine, and air to produce sugar, protein, starch or fat to survive this is called photosynthesis. People need the same thing to survive. People need air, water and food to survive.

3. HYDROPONICS

(i) Recently, scientists have discovered a new way of growing plants.

(ii) Instead of growing them in soil they grow then in mats and water with nutrients.

(iii) Hydroponics means that plants can be grown in small layers in tall buildings in a small piece of land.

4. CACTUSES

Cactuses are plants that can survive in the desert with out much water because of its special features. Lots of water can be

5. SAP

Sap is the liquid found in roots and stems. It is used to make many substances.

(i) The sap from sapodilla, a Mexican jungle tree is used in chewing gum.

(ii) Some of the turpentine we use is made from sap from the pine tree.

(iii) The sap of sugar maple trees eventually becomes maple syrup, that tasty topping for pancakes.

6. EXPERIMENTS WITH CELERY IN WATER

AND CELERY WITHOUT WATER.

Some of the celery was put in water; that helped it grow. The celery that was not put in water died.

7. EXPERIMENT WITH DEVIL IVY PLANTED IN SOIL AND IN WATER.

The Devil Ivy I planted in water and in soil are doing fairly well. As long as I remember to water them regularly, they will continue to grow well. I plan to continue to take care of them and water them regularly.

8. EXPERIMENT WITH SOME DEVIL IVY LEAVES COVERED WITH VASELINE AND SOME OTHER LEAVES LEFT UNCOVERED WITH VASELINE.

The Devil Ivy plants that the leaves were covered on both sides with Vaseline, the leaves got plugged up so the air couldn’t go through the pores of the leaves. The leaves that weren’t covered looked healthy.

9. THE TALLEST TREE I READ ABOUT

I have never seen a tree that is 30 stories high, however, I read about sequoias trees that are the tallest and oldest trees on earth. The bark is so thick it protects the trees from diseases. Also it is almost fireproof. Thanks to the bark, most sequoias have survived at least one forest fire during their long lives. The redwood tree is one type of sequoias. The red wood can grow as high as 30 story building. It takes several hundred years for them to reach this height. The tallest living tree in the world is a redwood about 360 feet tall. This tree is about 600 years old. Another type of tree of sequoia is called the giant sequoia. It grows from the coast in the in the Sierra Nevada mountains of California. The giant sequoia does not grow quite as tall as the redwood. Its trunk is thicker though so it actually contains more wood than redwood. It also seems to live longer. Most giant sequoias cannot produce seed until they are about 300 years old.

10. SEEDS ON THE MOVE

One way in which seeds travel is by hitchhiking. Some hitchhiker seeds have tiny hairy hooks. These hooks can catch on the fur of a passing animal such as a raccoon. Later the seed drops on the ground. It can begin growing. Other seeds are fliers. These seeds are shaped like wings. When a flier seed falls from its parent plant, it can catch a breeze and float some distance before settling onto the ground.

Edmond Procon

3/1/2001