Measurement
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Transcript of Measurement
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Chapter 9: Measurement
I. What is matter?
a. Anything that has mass (weight) and takes up space
II. How do we describe matter?
A. By its properties ( a way to describe matter)
1. size, color, shape, hardness, taste, odor, visibility (Can’t measure these properties)
2. Volume
3. Mass
4. Temperature
Can measure these properties
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II. What are the three states of matter?
a. Solid- has a shape and takes up space
b. Liquid- takes up space but has no shape
c. Gas – has no shape and doesn’t take up space
Changing States of Matter Simulation
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III. How do you measure length?• Ruler, tape measure, odometer, metric system
b.Centimeter- (cm) length of pinky finger tip; 100cm = 1m
1.book, pencil
c. Meter- (m) slightly larger than yardstick;
1. chalkboard, gym, room
d.Kilometer- (km) – 1000m = 1km; smaller than mile
1. To Florida, to Canton, to P&C
a. Millimeter (mm)- 1000mm =1m
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V. How do you measure the mass (amount of matter) of an object?
a. Balance Scale
b. Grams (g) – 1000g = 1kg; 1 large paperclip
1. popcorn, cucumber, you
c. Kilograms (kg)- large objects
1. truck, cow
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VI What is buoyancy and how does it work?
a.Buoyancy – the ability of an object to float
1. Are the object’s atoms packed together like sardines or are the atoms separated by air?
2. lead sinker or featherBuoyancy Game
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3. The more dense (heavy) an object is the more likely it will sink
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VII. How do you measure the amount of space an object takes up?
a. Volume- the amount of space an object takes up
1.Graduated cylinder or beaker
2. Liquids or objects not in cube shape
3. Measured in milliliters (ml) or liters (l); 1ml = 1cm x 1cm x 1cm
b.Cube Volume – Used to find volume of cube shaped objects
c. Length x width x height = how to measure the volume of a box
Graduated cylinder game
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4. Volume of an object that isn’t a box- Displacement- how to find the volume of anything with water
Step 1- pour 100ml of water in beaker, observe the curve in the water (bottom of meniscus) and write it down
Step 2- drop object in the beaker, observe the curve in the water and write down the measurement of the water + object
Step 3 - Subtract step 1 from step 2
Meniscus reading
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