Science Fair Blog Post: Week 4!

This week in the amazing science fair, we have been working on out Interim Report. We have filled it with everything we have done so far. Our, research, question, variables, and bibliography. 

We completed out hypothesis we think that If the recyclable material is plastic then, the sound waves that penetrate the soundproof wall will go slower, because the plastic bottle contains air which is a gas, and gas makes sound waves travel slower. 

We decided that we will be using wool, plastic, and wood to build three walls. One with wool, one with wood, and another with plastic bottles.

 Our next step is to gather all the materials and resources we need and start to build each wall. Can't wait to begin!