
A lot of people believe that objects float in water because of mass. Just being heavy or light

tarix  05.03.2018  ölçüsü  451 b. 

Scenario: Scenario: A tree trunk falls during a storm and ends up in the ocean it FLOATS, even though it has a mass of hundreds of pounds. This is because of density I know you must be saying “Density what is that?!”
A block of wood cut into a cube It is 10 centimeters long on each side and has a weight of 500 grams Now think about a block of gold cut into the same cube with 10 centimeters on a side What will have more mass the gold or wood?
The block of gold has a mass of 11,000 grams. The wood only 500 grams The block of gold has a mass of 11,000 grams. The wood only 500 grams The two cubes are the same size, or take up the same amount of space VOLUME, but there is more mass in gold than wood. Making it more dense
Density is a comparison of how much mass there is in a certain amount of space. ( OR VOLUME)
Formula: Mass/Volume Formula: Mass/Volume Units: Grams and Centimeters3 Practice Problem: If your notebook has a mass of 500 grams and a volume of 40 centimeters cubed what is the density
Density= Mass/Volume Density= Mass/Volume Mass= 500 grams Volume= 40 centimeters cubed Density= 500grams/40 cms3 Density = 10 grams/cm3 Questions??? Don’t worry we will practice this A LOT MORE ON WEDNESDAY!!
If it is LESS DENSE THAN THE LIQUID it FLOATS If it is MORE DENSE THAN THE LIQUID it SINKS The density for water is 1.0 g/cm3
Would be able to measure LENGTH, WIDTH, and HEIGHT of something like a jagged pebble, a ball, or a toy car? How would you go about finding density? (Hint use water, think about what happens when you get into a pool or bathtub)
Step Two: Find the mass of the irregular shaped object . How? Step Three: Fill a beaker with water in mL. Drop the item in the water submerging it or covering it. difference in water is the volume. Now how would we finish solving
Liquid Layers What do you think will happen if we pour corn syrup, vegetable oil, and water one by one in a clear container?
Break up into your lab groups quickly and quietly! Break up into your lab groups quickly and quietly! Let’s chat and come up with a hypothesis On the back supply table each group has a clear beaker, 200mL of water colored blue, 200 ml of corn syrup, and 200 mL vegetable oil. Carefully send 2 people over and take your beaker and fluids When I say go we will pour each fluid in one at a time and in the end we get something that…
What is the formula for density? What is the formula for density? What is the density of water? What happens if you pour together liquids that have different densities? Will the liquid on the top have the highest or lowest density? Will the liquid on the bottom have the highest or lowest density?
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