Measurement
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Transcript of Measurement
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
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
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
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
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
3. The more dense (heavy) an object is the more likely it will sink
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
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