4. Which of the following is the example of physical change below? *
1 point
A.frying an egg
B.corroding metal
C.Food decaying
D. separating sand from grave
5. How the atoms and molecules behave in the physical change? * 1 point
A.atoms and molecules produced by the reaction
B.atoms and molecules speed up or slow down
C.atomic bonds are broken or created
D. None of the above
6. Which of the following is an example of physical change? *
1 point
A.Baking a birthday cake for your mother.
B.A glass cup falls from the counter and shatters on the ground.
C.Lighting a piece of paper on fire and the paper burns up and leaves ashes.
D.Mixing baking soda and vinegar together, and this causes bubbles and foam.
7. What characteristic best describes what happen during a physical change? *
1 point
A.Mass is lost
B.Form stays the same
C.Composition changes
D.Composition stays the same
8. The material involved in the change is structurally the same before and after the change *
1 point
Change the composition
Reversible
Not Reversible
None of the above
9. Which is not the evidence of physical change? *
1 point
Grinding
Bending
Experimenting
Crushing
10. What happen to the molecules when you Sharpening a knife?
1 point
molecules change their structure
molecules are being created and destroyed.
molecules still the same
All of the above​