Physical Science Lesson Objectives Students should be able

Physical Science Lesson Objectives: Students should be able to define: Scientific Notation. They should also be able to solve problems using scientific notation. Benchmarks: MAFS. K 12. MP. 6, MAFS. 912. N-Q. 1. 1

Measurement In science we tend to use scientific notation for very large or very small numbers. There are 60200000000000 atoms in one mole. We need to make this easier to talk about so scientific notation is used. The number is 6. 02 x 10^23. Speed of light is 300, 000 m/s. Converted it is 3. 0 X 10^8 Practice

Measurement 1. 5 x 10^11 is the distance in meters from the earth to the sun. How long does it take for light to travel this distance? Light travels at 3 x 10^8 m/s. We can work the same problem backward, how far does light travel in 500 s? We have 3 moles of Ca. CO 3, how many atoms do we have if there are 6. 02 x 10^23 molecules in one mole?

Measurement 7. 6 x 10^-4 m x 1. 5 x 10^7 m = ? What is. 00053/29? How far does light travel in 8. 64 x 10^4 s? (speed of light is 3 x 10^8)

SI Units of Measurement

Density Is a derived unit. Explains a lot about how natural systems work. Density is the mass of an object divided by it’s volume. In known substances, we have a list of densities of materials, especially pure elements. How do you know if a gold bar is real? Density is 19. 32 g/ml