Mini-Project

Photo credit: Kevin Chan 5th Period
This week in chemistry my mini project was sticking a toothpick into a balloon with having the balloon pop.

The trick was to:

• Use the very pointy side of a very pointy toothpick.
• Then spread a lot of lubricant on the balloon's center and the toothpick.
• The lubricant is spread on the balloon's center top because it is the thickness.
• Then proceed to then sick the toothpick in the subjected area.

This experiment was great and very fun to do. A mini project I wont forget.

Science: I was able to stick a toothpick in a balloon without having the balloon pop because of air pressure. Air density builds to whatever level balances the force of gravity, because at this point gravity isn't strong enough to pull down a greater number of particles.

IProposeWe Make Radium Photographs

• How to make radium photographs
• What is radium?
  

Materials: with any one of a number of radioactive substances such as black uranium oxide, pitchblende, thorium nitrate and uranium nitrate and at a very small outlay.

Procedure:

1. Lay down a penny or a small object on top of a dry plate sealed in a black paper envelope, which is away from any light.
2. Lay the radioactive substance on top of the coin.
3. Do not disturb for a few days.

Safety precautions:

• wash hands
• keep hands away from face/body
• careful with chemicals

Scientific Principles:

1. Radioactivity changes color
   
2. Radioactivity rays changes the color of where it was put.
   
3. Radium takes time to react.
4. Light and placement effect the reaction of the radium.
   

Science Star testing

This week I took the star test for Chemistry. My chemistry teacher Mr.Olsen prepared us very well. The day before class we reviewed all materials from Lewis dot structures to kinetic energy. The test went well and am proud of all the hard work I did.