Changes around us Class 6

Painting on a paper is a/an

• reversible, physical change

• irreversible, chemical change

• reversible, chemical change

• irreversible, physical change

Give a example of physical change

• kicking a football

• burning a paper

• growth of animals and plants

• cooking

Which of these are chemical changes?

• rusting

• burning a log

• Melting ice cream

• slicing a orange peel

What is a reversible change?

• a change that cannot be reversed

• a change that can be reversed

• I don't know

• a change where a new substance is formed

What are irreversible changes?

• A change that cannot be reversed

• A change that can be reversed

• I don't know

• A change in which no new substance are formed

What are physical changes?

• I don't know

• a change where no new substance are formed

• a change where a new substance has formed

• A new formation of gas

What are chemical changes

• I don't know

• a new formation of gas

• a new formation of substance

• No new formation of substance

Burning a log is a chemical change

• true

• false

Melting of a popsicle is a reversible change

• true

• false

Which of these is NOT a reversible change?

• Water to Ice
• Juice to Popsicle
• Cookie Dough to Cookie
• Melting Chocolate