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Presentation transcript:

Under the document camera Thursday 9/17 Day 1 Science Starters Sheet Agenda 1. Please have these Items on your desk. Science notebook 2- Fill out your Agenda. Science Starter- Under the document camera

Remember how to measure volume? Volume is the amount of space that something takes up Volume is measured differently for liquids and solids Volume of Liquids The SI unit for liquid is liter Liquid volume is measured with a graduated cylinder

Rectangular Solids x x Width = Height Length 1.6cm x 1.3cm x 4.1cm =

Because the hammer is solid, we use cm3! Irregular Solids Displacement method Because the hammer is solid, we use cm3! 65 mL 69 mL Volume of Hammer? 4 mL or 4 cm3

Calculating density is simple! Measure the mass. Measure the volume. Divide. Mass (grams) Say “per” Density = Volume (cm3) The units that we use for density are grams/cm3

Density Problems (Use the DMV triangle!) 1. If 52 grams of matter has a volume of 65 cm3, what is the density of the matter? Will it float or sink in water? If a 32 gram piece of wood has a density of 4 g/cm3, what is the volume? A metal washer has a mass of 27 g and a volume of 3 cm3. What is its density?

If an object has a mass of 810 g and a volume of 45 cm3, what is its density? Will it float or sink in water? When you add a rock to 70 mL of water in a graduated cylinder, the water rises to 80 mL. The density of the rock is 4.2 g/cm3. What is the rock's mass? What is the volume of a sample of liquid with a density of 20 g/cm3 and a mass of 25 g? A 540g fish displaces 90 cm3 of water. What is the density of the fish?

Density Lab While you are in your seat, create your hypothesis. At the lab station you will find 6 items to measure. Using the measurement methods you have just learned, decide what you need to do. Create your procedure’s. Wait for Mrs.’s Goodman to give you approval to start the lab.