Changes around us

In a physical change:

• The molecules of the substance do not change

• The molecules of the substance do not change

• The molecules of a substance undergo change

• New substance are formed

Which of these is NOT a reversible change?

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

Tags

NGSS.5-PS1-4

Is heating sugar to make caramel a physical or chemical change?

• Chemical
• Physical

Photosynthesis is an example of a

• physical change
• chemical change

Tags

NGSS.5-LS1-1

Freezing juice is an example of a(n) ________

• physical change
• chemical change

Every change has a cause. true or false

• True

• False

Every change has a cause. true or false

• True

• False