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
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