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Physical & Chemical Properties NOTES . 1. Physical Properties. Physical properties can be observed or measured without changing it. Examples of physical properties Mass Density Volume Color Odor State of matter Texture. 2. Describe at least three physical properties of this object.
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1. Physical Properties • Physical properties can be observed or measured without changing it. • Examples of physical properties • Mass • Density • Volume • Color • Odor • State of matter • Texture
2. Describe at least three physical properties of this object. • ____________ • ____________ • ____________
3. Which statement is NOT a physical property? • It is burning • It is silver • It flips • It has buttons
4. Describe at least three physical properties of this object. • ________________ • ________________ • ________________
5. Chemical Properties • Describes matter based on its ability to change into new matter with different properties.
6. Chemical Properties • These properties can ONLY be observed during a chemical reaction. • Examples: • Flammability • Reactivity
7. Are flammability and reactivity a chemical property? • Yes • No
8. Discuss with your group and a list of 4 things that have flammability as a chemical property. a.b.c.d.
Flammability- is how easily something will burnsynonym: inflammable Prefix in can meet not or withinantonym: nonflammable Word Wizard FFA regulates the manufacture of highly flammable clothing. Under FFA, CPSC can issue mandatory flammability standards. Standards have been established for the clothing textiles, vinyl plastic film, carpets and rugs, children's sleepwear and mattresses and mattress pads.
Reactivity: the rate at which a substance will chemically react
10. Physical Changes • When matter changes, mass, density, or volume. • Does not form a new substance, the molecules are the SAME.
Physical Changes • How are the pictures below physical changes?
11. Physical Changes With your group, identify why the picture below is a physical change. Write your reason next to the picture.
12.Humpty Dumpty fell off the wall and broke apart when he hit the ground. Did Humpty Dumpty experience a physical change? • True • False
13. Chemical Change • One or more substances are changed into new substances that have new and different properties. • Hints that a chemical change has occurred: • A new color appears • Heat, light, or sound is given off • Bubbles from a gas appear • New odor • A solid material appears in a liquid • The change is difficult or IMPOSSIBLE to reverse
14. Chemical Change Why is this a chemical change? Discuss with your group and write you answer next to the picture.
15. Under each picture write a reason why each is an example of a chemical change. Reason: ______________________________ Reason: _______________________________
16. What type of change is this? • Physical change • Chemical change
17. What type of change is this? • Physical change • Chemical change
18. What type of change is this? • Physical change • Chemical change
19. What type of change is this? • Physical change • Chemical change
What type of change is this? • Physical change • Chemical change Step 2 Step 3 Step 1
