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Science
Reversible And Irreversible Reaction
Quiz 3
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Q.1
Mrs. Craft made cupcakes with pink icing. When she baked the cupcakes, was the change reversible or irreversible?
reversible
irreversible
Q.2
Ms. Farrar dumps baking soda in vinegar and it creates a lot of bubbles. Is this change reversible or irreversible?
reversible
irreversible
Q.3
Ms. Baldwin stirs sugar into water. It dissolves. Is this change reversible or irreversible?
reversible
irreversible
Q.4
Ms. Brouse and Ms. Shearer leave their milk cartons outside in winter. The milk freezes solid! Is this change reversible or irreversible?
reversible
irreversible
Q.5
When talking about fire extinguishers, the acronym PASS means...
Pass - Aim - Sweep - See
Push - Aid - Spray - See
Pull - Aim - Spray - Sweep
Q.6
Tick the three main things you need to start a fire.
Ignition.
A fuel.
Oxygen.
All of above
Q.7
Rusting is an irreversible change.
TRUE
FALSE
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