Changes in Matter

Grade 3 Science Worksheet

Circle the answer.

1. 1.

   Water vapor near a cold glass turns into liquid drops. What is this change called?

   • melting
   • evaporation
   • freezing
   • condensation
2. 2.

   Juice is poured into a mold and frozen. What does it become?

   • a solid juice pop
   • juice vapor
   • liquid juice
   • melted juice
3. 3.

   Which pair shows a change and its opposite?

   • melting and burning
   • melting and freezing
   • evaporating and burning
   • freezing and rusting
4. 4.

   Road crews spread salt before an ice storm. Why?

   • salt helps stop water from freezing into ice
   • salt makes the roads warmer than the air
   • salt makes ice harder
   • salt soaks up all the rain
5. 5.

   Which change cannot be undone?

   • puddles drying in the sun
   • trees burned to ash in a wildfire
   • rain freezing into ice
   • snow melting into puddles
6. 6.

   Water in an open bowl gets lower each day. Which change is happening?

   • condensation
   • freezing
   • melting
   • evaporation
7. 7.

   On a cold sunny day, snow on a warm roof melts and drips. What happens to the drips at the cold edge of the roof?

   • they evaporate right away
   • they melt again
   • they turn into snow
   • they freeze into icicles
8. 8.

   Chocolate melts in a hot car. Then it cools in the fridge. What happened?

   • it melted and then became solid again
   • it stayed solid the whole time
   • it turned into a gas and back
   • it burned and cannot change back
9. 9.

   Which observation shows that a change can be undone?

   • rust stays on a nail when it dries
   • melted wax hardens again when it cools
   • ash stays ash when it cools
   • a burned stick stays black when it cools
10. 10.

    A water pipe outdoors bursts on a very cold night. What most likely happened?

    • the water inside froze and expanded
    • the pipe melted
    • the water inside evaporated
    • the water inside boiled