2). Copy and answer the following questions into your notes. Be creative!!!!

1) Ask yourself did you write-down the homework.

A. I live in a country plagued with poverty and overpopulation. The houses in my village are

constructed so close together that I get limited sunlight. In fact my elderly neighbor sleeps all day because she is confused as to when its day time or night time. Can u solve my problem?

http://www.youtube.com/watch?v=JOl4vwhwkW8&sns=em

Cell phones emit radiofrequency energy, a form of non-ionizing electromagnetic

radiation, which can be absorbed by tissues closest to where the phone is held.

The amount of radiofrequency energy a cell phone user is exposed to depends on the technology of the phone, the distance between the phone’s antenna and the user, the extent and type

of use, and the user’s distance from cell phone towers.

Studies thus far have not shown a

consistent link between cell phone

use and cancers of the brain, nerves,

or other tissues of the head or neck.

More research is needed because

cell phone technology and how

people use cell phones have

been changing rapidly. 

THANKS TO THE SCIENTIFIC METHOD

Scientific method is the techniques for investigating , acquiring new knowledge, or

correcting and integrating previous knowledge.

Problem

Hypothesis

Experiment

Results

Conclusion

Repeat

Purple

Hippos

Eat

Really

Cold

Raviolis

Do Now: Literacy lab

HW: castle learning

And complete handout

Stated as a QUESTION. The problem questions what you are

looking to find out.

Stated as a prediction. Can be a “If…….then…….” statement.

Includes all aspects of your problem

Example: What effect does the type of gas used have on the gas mileage of a car?

Example: If high octane gas is used then a car will have the highest gas mileage.

The point in the experiment in which the hypothesis is tested.

A detailed procedural list must be followed.

Any data/observations that have occurred during the experiment which should be recorded.

Results are usually displayed visually in a table and/or a graph.

A detailed paragraph that states whether the hypothesis was supported or refuted.

Specific data must be referred to.Possible sources of error that could have

effected the experiment should be mentioned.

Multiple trials must be performed to prove validity of claim

It’s a wicked mega hit that delivers twice the buzz of a

regular energy drink. MONSTER packs a vicious punch but has a smooth

flavor

Stated as a QUESTION. The problem questions what you are

looking to find out.

Stated as a prediction. Can be a “If…….then…….” statement.

Includes all aspects of your problem

Example: What effect does the type of gas used have on the gas mileage of a car?

Example: If high octane gas is used then a car will have the highest gas mileage.

The point in the experiment in which the hypothesis is tested.

A detailed procedural list must be followed.

Any data/observations that have occurred during the experiment which should be recorded.

Results are usually displayed visually in a table and/or a graph.

A detailed paragraph that states whether the hypothesis was supported or refuted.

Specific data must be referred to.Possible sources of error that could have

effected the experiment should be mentioned.

Multiple trials must be performed to prove validity of claim

1. Be controlled.

In a controlled experiment only one variable is tested at a time.

Variable- is the factor in the experiment that could cause change or be changed

All experiments must :

Independent VariableThe factor that is purposely altered by the researcher, that may or may not lead to change in the dependent variable. Generally it is the factor that you are testing.

Example 1: the amount of light

Example 2 : the amount of food you eat

Dependent VariableThe factor in the experiment that may

respond to/ change due to the independent variable.

Example 1: the amount of plant growth

Example 2: your weight

2. Have two groups; one control group and one experimental group.

Control group

The group in the experiment that has all conditions exactly the same as the

experimental group, except the independent variable (the factor that is

being tested)USED FOR COMPARING

The control group is used for comparison of results, to determine if the change

was caused by the independent variable or

not.

Experimental Group

The group in the experiment that has all conditions exactly the same as the control group

BUT….. It is the only group containing the independent

variable (the factor that is being

tested)

3. A large study group (sample size)

When testing, there should always be a large number of subjects to

provide accuracy and reduce any or all biases.Biases – the preconceived

notions that may alter results.

DO NOW: DO NOW: Brainstorm ideas for the following example……If a cork is put into a

glass of water, the cork will almost always drift to the side of the glass. How can you get the cork to float in the center of the glass? Water, the glass, and the

cork are all that is required.