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Can you list the steps to the scientific method? It will be on your first test - PowerPoint PPT Presentation


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Can you list the steps to the scientific method? It will be on your first test. State the problem. 2. Gather Information. 3. Form a hypothesis. 4. Test the hypothesis. 5. Analyze data. 6. Draw conclusion. What is missing ?. What do you think of when you hear 32 degrees 32 ◦ ___.

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slide1

Can you list the steps to the scientific method?

It will be on your first test

State the problem

2. Gather Information

3. Form a hypothesis

4. Test the hypothesis

5. Analyze data

6. Draw conclusion

what do you think of when you hear 32 degrees 32

What is missing ?

What do you think of when you hear 32 degrees 32◦ ___

(SCALE) Fahrenheit, Celsius, Kelvin

United States

Scientist

& majority other countries

Measures VERY high

Or VERY low temps.

32◦ Fahrenheit

32◦ Celsius = 89◦ Fahrenheit

273◦Kelvin

slide4
A. Standard- exact quantity that people agree to use for comparison

B. Measurements must have a number and a unit .

slide5

1. SI – (International system of standards) an improved version of the metric system used and understood by scientists worldwide.

2. SI system is based on multiples of 10 and uses prefixes to indicate a specific multiple.

slide6

Lengthis measured using a unit appropriate for the distance between two points. SI unit – meter (m)

  • Volumethe amount of space an object occupies.

SI unit – liter (L)

slide7

Mass - measured of matter in an object. SI unit = kilogram (kg)

What’s the difference between mass and weight?

Mass = measure of matter (amount of “stuff” you are made up of)… your mass stays the same whether you are on Earth or the moon or Neptune

Weight = mass + gravity pulling on that object …so you would weigh less on the moon since there is less gravity

http://www.exploratorium.edu/ronh/weight/

Mass =Triple beam balance

Weight Scale

slide8

What do you have to do with Italian salad dressing before using it?

1. Density - mass per unit volume of a material.

2. A unit obtained by combining different SI units is called a derived unit.

Example: g/cm3

less dense

slide9

Time is the interval between two events;

The SI unit for time is seconds (s)

G. Temperature is measured using a thermometer.

The SI unit of temperature is Kelvin (k)

slide11

1

2

3

MetersLitersGrams

How do you use the “ladder” method?

1st – Determine your starting point.

2nd – Count the “jumps” to your ending point.

3rd – Move the decimal the same number of jumps in the same direction.

Starting Point

Ending Point

__.

__.

__.

2

3

1

Ladder Method

KILO1000

HECTO100

DEKA10

DECI0.1

CENTI0.01

MILLI0.001

__.

4 km = _________ m

How many jumps does it take?

4.

= 4000 m

slide12

MetersLitersGrams

Conversion Practice

Try these conversions using the ladder method.

1.

1000.

1600.

1000 mg = _______ g 1 L = _______ mL 160 cm = _______ mm

14 km = _______ m 109 g = ______ kg 250 m = _______ km

.109

.250

14000.