Thursday, March 21, 2019

Soiling and Washing Fabric

The latest material that we are studying is fabric.  Earlier this week, we observed several different types of fabric.  We discovered that fabric comes from many sources...plants, animals, silkworm cocoons and even oil.  We learned how fabric is made by actually taking two different types of fabric (burlap and wool) apart.  The threads in fabric that run lengthwise are called the warp.  The threads that run crosswise  are called the woof.

Today we learned about soiling and washing fabric.  We started by soiling a piece of fabric with three different things...chocolate syrup, ketchup and mustard.  The scientists really enjoyed this part!

   

   

We met back on the rug to discuss how we could make these stains disappear.  Each table had a basin of water and some brushes.  We decided to try washing the stains off.

   

   

We gather back at the rub to talk about our observations.  While it seemed like the stains were lighter, they were not gone.  We needed to find a way to make them go away.  We decided to add some laundry detergent and try scrubbing them again.

   

   


This step seemed to help us be more successful.  We did observe that, for the most part, we were able to get the chocolate syrup and ketchup out of the fabric but the mustard was a bit more stubborn.  It was not gone.  We decided to let the fabric dry and we would observe it again.  Since we do not have a clothes dryer in our room, we had to dry our fabric the old fashioned way...on a clothesline!

   

What a great, hands on way to learn about soiling and washing fabric.  Great job, scientists!













No comments:

Post a Comment