Presentation on theme: "To measure the volume of a cubed or rectangular shaped solid all you need is a ruler. Measure the length, width, and height of the object and then multiple."— Presentation transcript:
To measure the volume of a cubed or rectangular shaped solid all you need is a ruler. Measure the length, width, and height of the object and then multiple the three numbers together. A line is one dimensional - cm Area is two dimensional 2-D - cm squared volume is three dimensional 3-D - cm cubed Volume can also be measured in liquids as mL. They don't need to be cubed because Liters implies 3-D Example Take a look at the orange cube on the right. Notice that the length is 6 cm, the width is 4 cm and the height is 7 cm. So if you multiple those three numbers together you get 168 cm3.
Now you try figuring out what the volume is. 5cm x 5 cm x 5 cm= 125 cm3
The two lines that are marked are 6 mL and 8 mL. That means that each marking between 6 mL and 8 mL is equal to 0.2 mL. Graduated cylinders are often marked differently, so don't forget to check!
1 cm3 is equal to 1 mL. The cylinder starts with 200 cm3 of water. When the rock is dropped in, the volume goes to approximately 270 cm3. If you subtract 200 mL from 270 cm3 you get 70 cm3. So the volume of the rock is 70 cm3.
Now you try to find the volume of a fish using water displacement. What is the volume of the fish? 38 ml -32 ml 6ml
Water before = 4.8 mL Water after = 5.6 mL What is the volume of the toy dinosaur? 5.6ml -4.8 ml.8 ml
What is the volume of the hammer? 69 ml -65 ml 4 ml