3 branches of science

2. Physical Science– study of matter and energy… Matter( chemistry) and energy is part of the physical science

3. Earth Science– study of Earth , its history , its changes, and its place in the universe.

Feynman –on beautyhttp://www.youtube.com/watch?

v=cRmbwczTC6E&feature=relatedhttp://www.youtube.com/watch?v=cRmbwczTC6E&feature=related

Scientific methodhttp://www.youtube.com/watch?

v=lmTmGLzPVyM&feature=fvwrelhttp://www.youtube.com/watch?v=lmTmGLzPVyM&feature=fvwrel

Scientific methodhttp://studyjams.scholastic.com/studyjams/ja

ms/science/scientific-inquiry/scientific-methods.htm

7 Steps to the Scientific Method

• 1) State the _______________)• purpose• 2) Research it, and get _______________.• information• 3) Form a Hypothesis.• ( educated guess) • 4) Perform an _____________________• experiment• 5) Collect Data.• (Observations and Results)• 6)Form your ____________________• conclusions_• 7) the experiment.• Repeat •

•Every experiment must have a __________________and a _______________.

• Control- part of experiment that stays the ________________

• Variable- part of exp. being __________________•Independent V- causes a _____________in something being tested. ( cause )•Dependent V – the part in the experiment that ___________( effect )

Theory--- A theory is the most logical explanation for something that happens in nature.

Law— A theory becomes a law when it is well accepted and well tested by the sc. Community.

Scientific theory and evidencehttp://studyjams.scholastic.com/studyjams/

jams/science/scientific-inquiry/scientific-theory-and-evid.htmhttp://studyjams.scholastic.com/studyjams/jams/science/scientific-inquiry/scientific-theory-and-evid.htm

So here’s a question:If two people travel the same distance, from A

to B, at the same time, and one is walking, while the other is running, who will get “wetter” if it is raining?

How would you solve this problem using the Scientific Method?

Here’s the answer:http://dsc.discovery.com/tv-shows/

mythbusters/videos/running-in-the-rain-minimyth.htmhttp://dsc.discovery.com/tv-shows/mythbusters/videos/running-in-the-rain-minimyth.htm

Metric System-________________ system of measurement used by all scientists.international

International system of units---SI ( system internationale)

Based on the ___________---It is a decimal system 10

Metric System-________________ system of measurement used by all scientists.

International system of units---SI ( system internationale)Based on the ___________---It is a decimal system

http://www.brainpop.com/math/numbersandoperations/metricvscustomary/

Metric system vs. Customary System

Measuring matterhttp://www.brainpop.com/science/

matterandchemistry/measuringmatter/http://www.brainpop.com/science/matterandchemistry/measuringmatter/

http://studyjams.scholastic.com/studyjams/jams/science/matter/properties-of-matter.htmhttp://studyjams.scholastic.com/studyjams/jams/science/matter/properties-of-matter.htm

Types of Measurement Unit Scientific Tools-instruments

Length-measures distance meter Metric ruler

Meter stick

__________________________________________________Mass-amt. of matter kilogram Triple Beam

in an object Balance

 _________________________________________________

Temperature-measure Celsius( °C) Thermometer

of the total amount of kelvin (K)

kinetic energyin an obj.

 

Volume-amount of space Units tools

an object takes up. (cm³) Graduated cylinder L over flow can

m.ruler/m.stick

*1 cc = 1 cm³ ; 1 cm3 = 1mL = 1 gram___________________________________________Volume of a regular solid (cm³ )(LxWxH) Meter

Stick/ruler ex: cube

___________________________________________Vol. of liquid mL, L Graduated cylinder

______________________________________________ Vol. of irregular Solid -ex: pencil cm³ , m³ Graduated cylinder

overflow can

Density- relationship Units tools between mass and volume

overflow can D =

m/v g/cm³ TBB, Gcylinder___________________________g/mL________________________ Weight-gravitational pull on an object-affected by mass Newton spring scale

http://teachertube.com/viewVideo.php?video_id=93322http://teachertube.com/viewVideo.php?video_id=93322

K H D b d c m PREFIX: KILO, HECTO, DEKA, (BASE UNIT), deci, centi, milli

Means: 1000 100 10 meter, liter, gram, 1/10th, 1/ 100th, 1/1000th

If you are going to left of base unit, move decimal to left. If you are going to right of base unit, move decimal to right # of places.

1. 10 m = ? Km

2. 2 km = ? Cm

3. 25.2 mL = ? L

4. 2000 g = ? kg

5. 10 kg = ? mg

6. 1500 cc = L

Answers: 1. 10 m = ___________km .01 km 2. 2 km = _________cm 200,000 cm 3. 250 mL = _______ L . 250 L 4. 2000 g = _______ kg 2 kg 5. 10 kg = _______ mg 10 000 000 mg 6. 1500 cc = _______L 1.5 L NOW LET’S DO THE CONVERSIONS ON “METRIC

MANIA!”

Conversions• 55 kg. to grams• 32 km to centimeters• 921 mL to Liters• .7grams to milligrams• 1500 grams to Kilograms• 108 mL to Liters• 110 Liters to mL• 1000 centimeters to Kilometers• 1 mL to cc’s• 4 mL to cc’s • 4 mL to cm•16,000 mm to meters•16,000 meters to centimeters

How would you get the volume of a cylinder?http://www.brainpop.com/math/

geometryandmeasurement/volumeofcylinders/

Scientific NotationTo reduce the number of zeros in very big and very small numbers, you can

express the values as simple numbers multiplied by a power of 10.

All # must be between # 1 and 10.

scientific notation. 103 = 1,000102 = 100101 = 10100 = 1

10-1 = 0.110-2 = 0.0110-3 = 0.001

The speed of light is about 300,000,000 m/sIn scientific notation the speed of light is

3.0 x 108On your own:Write the following measurements in

scientific notation.a. 800,000,000 m b. 0.0015 kgWrite the following measurements in long

form.a. 4.5 x 103 g b. 1.99 x 10-

8 cm