Absorb or repel water

1. Ana uses a sponge to soak up juice from the floor. Why does this work?

   • The sponge has tiny holes that take in liquid. (right)
   • The sponge is made of plastic and doesn’t absorb.
   • The sponge melts when it touches juice.

2. Ines uses a sponge to soak up juice from the floor. Why does this work?

   • The sponge is made of plastic and doesn’t absorb.
   • The sponge melts when it touches juice.
   • The sponge has tiny holes that take in liquid. (right)

3. Luca puts a sponge on the table and then adds water. What happens?

   • It soaks up water (right)
   • It melts
   • It rolls away

Tip: Sponges have tiny holes that let them absorb water. Wax paper has wax that keeps water from soaking in, so it repels water instead.