Oil and water

Science

• The child learned that oil and water do not mix together and form separate layers.
• They observed the difference in density between oil and water and saw how the oil floated on top of the water.
• The child discovered that when they added food coloring to the water, it did not mix with the oil layer.
• They learned that shaking the oil and water mixture creates temporary emulsion, but it eventually separates again.

For continued development, you can encourage the child to explore other materials that do not mix with water, such as vinegar or rubbing alcohol. They can compare the behavior of these substances with oil and water, and discuss the reasons behind the differences. Additionally, you can introduce the concept of emulsifiers and show how certain substances can help mix oil and water together more permanently.

Book Recommendations

• Oil Spill! by Melvin Berger: This book explains what happens during an oil spill and how it affects the environment, highlighting the importance of protecting our oceans.
• Water Can Be... by Laura Purdie Salas: This book explores the various forms and uses of water, including its interaction with different substances like oil, and highlights the importance of water conservation.
• What's So Special About Water? by Sheila Rivera: This book explains the unique properties of water, including its ability to dissolve certain substances and its role in supporting life on Earth.