Review 4th grade AV1 2nd tri

Peter hangs his washed wet laundry on the cloth hook for drying under the heat of the sun.

• Physical Change

• Chemical Change

John mixes 250mL of pineapple juice in a bowl of mayonnaise which caused it to spoil and produce a foul smell.

• Physical Change

• Chemical Change

Myrna notices the Foul smelling and spoiling food she forgot to store in her refrigerator last night.

• Physical Change

• Chemical Change

Cathy loves to watch burning exploding colorful fireworks every New Year’s Eve.

• 
  Physical Change

• Chemical Change

The students prepare for a bonfire as part of their team building. They used dried logs to produce fire.

• Physical Change

• Chemical Change

To prepare for the bonfire, they need to chop some wood.

• 
  Physical Change

• Chemical Change

Check the reversible changes.

• 
• 
• 
• 

• Unicellular

• Acellular

• Multicellular

• Unicellular

• Acellular

• Multicellular

What is the smallest unit in a living organism?