Lava LAMPS!
This afternoon we made our own Lava lamps! We added oil to our RED water and watched it FLOAT to the top of the cup. Then we added SALT and watched it SINK to the bottom of the cup. THEN we watched as bubbles of oil floated back UP to the top!
We found out that OIL floats to the top of the water because it it lighter then water. Since the SALT is heavier then water is SINKS down into the water and takes some OIL with it... Once the salt dissolves, the OIL goes back up!
Mrs Naik asked us to use what we have learned to think about WHY whales don't SINK to the bottom of the ocean if they are so large and heavy?! We will explore the answer to this question tomorrow!
No comments:
Post a Comment