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Can you describe the following changes?

Starter

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https://edpuzzle.com/media/611e992e1520424136482de6

https://www.youtube.com/watch?v=NRCn8z8gb1w&ab_channel=Don%27tMemorise

Chemical Reactions

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starter

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https://edpuzzle.com/media/601d723f5cb3e64237313061

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The law of conservation of mass states that the total mass before a physical change is the same as( equals ) the total mass after the physical change .

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https://edpuzzle.com/media/6138ca9f892c81418acd3797

https://www.youtube.com/watch?v=3lHHOiTdmK4&ab_channel=CrashCourseKids

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A. liquid

B. precipitate

C. a new substance

D. gas

The only sure sign of a chemical change is the formation of which of the following?

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A. conservation of mass

B. conservation of volume

C. conservation of matter

D. conservation of size

Which law states that the total mass before a chemical reaction is the same as the total mass after the chemical reaction?

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A. physical change

B. conservation of mass

C. chemical change

D. physical and chemical change

Which refers to a change in a substance where no new substances are formed?

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  1. Look at the following changes
  2. Describe the type of change
  3. Explain how did you know ?

Starter

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https://edpuzzle.com/media/5faed4fce44c304096e6a12f

https://www.youtube.com/watch?v=FOeH29hlHlU&ab_channel=EdHitchcock

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https://edpuzzle.com/media/6061353d14b378425c296c5c

https://www.youtube.com/watch?v=JUH9E1M0Gwc&ab_channel=MooMooMathandScience

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https://www.liveworksheets.com/worksheets/en/Science/Physical_and_Chemical_Changes/Physical_and_Chemical_changes_fe1966363zb