Chapter 1 Review

Physical or Chemical

Physical or Chemical

Physical or Chemical

Physical or Chemical

Chemical or Physical https://www.youtube.com/watch?v=WTA7KR9-9lM

Physical or Chemical

Physical or Chemical

Physical or chemical https://www.youtube.com/watch?v=LjXCbxc_inU

Physical or Chemical

Types of chemical changes 1. combustion – rapid combination of fuel with oxygen Gas, oil, or coal burning 2. Electrolysis- use of electricity Breaking down water into H and O2 3. Oxidation – combination of a substance with O2 Rust 4. Tarnishing- slow combination of bright metal turning dull Tarnishing brass

combustion – rapid combination of fuel with oxygen Gas, oil, or coal burning

Electrolysis- use of electricity Breaking down water into H and O2

Oxidation – combination of a substance with O2 Rust

Tarnishing- slow combination of bright metal turning dull Tarnishing brass

Law of conservation of mass Pg. 31 The fact that matter is not created or destroyed in any chemical or physical change is called the Law of Conservation of Mass

Pg. 26 1 + 2

Pg. 27 Fig. 1

MAKE A PHYSICAL CHANGE TO THE CORNER OF PAGE 28 ABOVE THE FROG.

Pg. 28 P. 28 1A+B

p.29 Apply it

Pg. 32 TEMPERATURE – is a measure of how hot or cold something is

https://youtu.be/EBcp24-wJW4 The hotter an object is, the faster the motion of the molecules inside it. https://youtu.be/EBcp24-wJW4

https://www.youtube.com/watch?v=gNM_9etcJT0 Thermal Energy- is the total energy of the motion of all of the particles in an object. Ther mal ener gy- is the total ener gy of the motio n of all of the parti cles in an objec t.

Endothermic vs exothermic Ther mal ener gy- is the total ener gy of the motio n of all of the parti cles in an objec t. Endothermic vs exothermic

Endothermic- absorbs energy

Exothermic- releases energy

Study guide