Children Case

A hypothesis is a statement which predicts what effect will occur from a specific cause which is the experiment. A theory is an accepted as a scientific truth based on logical and pragmatic thinking and exploration that has been repeated with the same results by many researchers many times. Examples of hypotheses include any type of educated assumption one can make and then create a test to prove it.

For example:

* "If I open the front door, then more air will come into the house."

* "Raising the temperature in the car will make it a lot warmer in the winter."

* " If I organize movies in alphabetical order, then it will be a lot easier to find."

The various levels of organization are:

Cells, tissues, organs, organ system, organisms

Cells are the structural and functional units of all living organisms. Some organisms, such as bacteria, are unicellular, consisting of a single cell. Each cell is an amazing world unto itself: it can take in nutrients, convert these nutrients into energy, carry out specialized functions, and reproduce as necessary. Even more amazing is that each cell stores its own set of instructions for carrying out each of these activities. A cell is the very smallest unit of living matter. All living things including plants and animals are made up of cells. Cells are made of atoms, which are the smallest units of matter. There are many different kinds of cells. The two kinds you are most likely to be familiar with are animal and plant cells. Some of the differences between them are that plant cells have a cell wall and chloroplasts. Prokaryotic cells do not have a nucleus and are the oldest of the two cell constructions; they date back as far as three and a half billion years ago. Almost all species of prokaryotes have cell walls exterior to their plasma membranes. The two major branches of prokaryotic evolution are bacteria and archaea. Some bacteria are harmful and even deadly to humans; it can cause infections and diseases. However the largest percentage of bacteria is essential to life. Eukaryotic cells do have a nucleus and also several membrane bound organelles that are not present