What is Science? What is the scientific method and how does it work? What are the tools for measurement in Science?
Science is... •
A body of knowledge •
•
A way of doing things •
•
Stuff we think we know
The Scientific method
Richard Feynman - smart guy.. •
The belief in the ignorance of experts..
Steps in the Scientific Method 1. State the problem 2. Get some information 3. Form a hypothesis 4. Test hypothesis 5. Analyze data 6. Draw a conclusion
MEASUREMENT • Measurements always include a number and a unit. • Tools must be used to complete measurements. • You must know what property of an object you are measuring to know what unit and tool to use.
Length • Distance between two points • Base Units- Meters • Tools- ruler, meterstick, tape measure
Measuring Practice • Write the measurements for A-E on the ruler on the next slide on your notes. Remember to include units for it to be a measurement. • Then check your answers.
Measuring in Centimeters
A= .6 cm
D= 3.7 cm
B= 1.2 cm
E= 5.6 cm
C= 2.2 cm
Volume • Amount of space a substance occupies • Base Unit- Liters • Best tool- graduated cylinder
• If the object is a cube take LxWxH to find the volume.
Mass vs Weight • Weight is the amount of gravitational pull on an object. (Tool- scale) • Mass is a measure of the amount of matter in an object. (Tool- balance) • For most situations on Earth mass and weight will appear the same, but they are very different. We will only talk about mass in this class.
Page 3 of 10. Science is... ⢠A body of knowledge. ⢠Stuff we think we know. ⢠A way of doing things. ⢠The Scientific method. ⢠Richard Feynman - smart guy.. ⢠The belief in the ignorance of experts.. Page 3 of 10 ...
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However, this is not necessar- ily the result of geothermal energy but is more often stored solar energy from the sun (Ground source heat is explained in brief on ...
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