1. How do hot air balloons work?

2. Intro to Matter

3. Matter- anything with mass and volume
Mass- how much matter (stuff) is in an object

5. Mass vs. Weight Weight- measure of gravitational force
Objects with greater mass have a greater gravitational force so they weigh more
Weight can change depending on location
Mass stays the same
Mass vs. Weight Gizmo

6. Volume Volume- how much space something takes up
Regular solids- use math formulas (example- L x W x H)
Liquids- use graduated cylinder
Gas- volume of the container

7. Irregular solids- use water displacement
Sketch this!

8. Density How much mass is in a specific space
How heavy something is compared to its size
Density of a substance is the same no matter how much of the substance you have

10. Examples D= ? M= 80 g V= 2 cm3 D= 20 g/mL M= 100 g V= ?
D= 4 g/cm3 M= ? V= 15 cm3

13. Properties of Matter

14. Physical Properties
Characteristics that can be observed and measured without changing the identity of a substance
Use your 5 senses
Describe the substance

15. Common physical properties
Density
Electrical conductivity- how electrical current moves through a substance
Solubility- ability to dissolve in another substance
Thermal conductivity- how well it transfers heat

16. Malleability- capable of being shaped
Color
Luster- how shiny it is
Magnetic attraction
Melting point
Boiling point

17. Identified by changes they produce
Chemical properties
Describe a substance’s ability to change into another substance with different properties
Identified by changes they produce

18. Common chemical properties
Flammability- ability to burn
Reactivity with other substances ex: iron and oxygen form rust

19. Physical & Chemical Properties (Make 1 for each)
Definition
Examples (at least 3)
Picture
Explain your picture using complete sentences