Introduction to Science!!!!!

Introduction to Science!!!!!

What is Science?• Consistent- The same event happens every time these

events occur…• Observable- can we see the event happening• Natural- is the event natural (not supernatural)• Predictable- using past similar experiences, we can

guess what might happen• Testability- can we test the event in a controlled

experiment• Tentative – Means scientific theories will change and

be revised.

How do we “DO” science?

• Science is based off of constant QUESTIONING

Ban Dihydrogen Monoxide! -The Invisible Killer• Dihydrogen monoxide is colorless, odorless,

tasteless, and kills uncounted thousands of people every year. Most of these deaths are caused by accidental inhalation of DHMO, but the dangers of dihydrogen monoxide do not end there. Prolonged exposure to its solid form causes severe tissue damage. Symptoms of DHMO ingestion can include excessive sweating and urination, and possibly a bloated feeling, nausea, vomiting and body electrolyte imbalance. For those who have become dependent, DHMO withdrawal means certain death.

Dihydrogen monoxide: • is also known as hydroxyl acid, and is the major

component of acid rain. • contributes to the "greenhouse effect." • may cause severe burns. • contributes to the erosion of our natural

landscape. • accelerates corrosion and rusting of many metals. • may cause electrical failures and decreased

effectiveness of automobile brakes. • has been found in excised tumors of terminal

cancer patients.

Which statement is scientific?Use CONPTT to tell which one is scientific1. Walking under a ladder causes bad luck every

time.

OR

Green plants will grow towards a light if its is placed near the plant..

2. Green plants convert sunlight to energy

OR

The man pulled a rabbit from his hat using magic.

3. Some plants are carnivorous.

Or

Aliens have visited earth.

4. Traveling in the Bermuda Triangle will cause ships and planes to sink and disappear.

ORGum loses some of its mass when you chew it.

5. Without sunlight, green plants will die. ORYour horoscope says you will get a lot of money

today!

6. The number of human chromosomes was once thought to be 48, but now it is 46.

OR

We know that the earth was formed around 6000 years ago.

Scientific MethodQuestion

Observation

Hypothesis- an educated guess

Investigate

Record data (pieces of information)

Conclusion

Queen Of Hearts In Reading Class

Designing your experimentB. Parts of the investigation

1. Each investigation must be systematic2. To find an answer to your question, you will test only one variable at a time. There are 3 types of variables.

a) Independent Variable- the single thing you changeb) Dependent Variable- the thing that

may or may not be affected by the independent variable.c) Controlled Variables-factors that you try to keep the same. Also called constants.

3. Each study must include a Control group; a) compare results from the

experiment to control group

4. You will change one independent variable and measure the dependent variable.

5. Compare your results to the control group, and make a Conclusion- what you decide the answer to your question is.

C. Human Abilities in Science

1. Reasoning- Observing what you see, hear, or touch, and saying why and how an event happens.

2. Creativity- thinking beyond what is available and trying/making something new.

3. Skepticism- not believing an explanation until a test supports the explanation.

4. Openness- willing to accept a new explanation; believing a theory is incorrect and must change.

1. Make a quick summary of your scientist’s life. What were some of their great achievements?

2. Which quality (or qualities) did your scientist demonstrate most strongly? (Reasoning, openness, skepticism, creativity)

3. How were these qualities helpful to them?

4. Which of these qualities do YOU have? Give examples.

D. Safety Rules1. Read all LAB rules, and clean up!2. Wear safety equipment like Goggles,

lab aprons, and gloves; tie back long hair, and no loose Jewelry. 3. Inspect electrical equipment, keep

away from Water

4. Point the mouth of containers Away from people. Never heat substances in Closed containers.

5. Never Smell, Taste, or Touch any unknown chemicals. Dispose of chemicals as Mr. Ross says.

6. Report all accidents IMMEDIATELY to Mr. Ross

E. Displaying Data1. Line Graphs2. Bar Graphs3. Pie Charts/ Circle Graphs4. Data Tables