Technicraft Wk 7

Plan:

• Vineger
• Baking Soda
• Bottle
• Funnel
• Beaker

Writing:

Science today was based around experimenting how endothermic works.

This experiment involved vineger, baking soda, a bottle, a funnel, balloon and beaker. The first step was to stretch the balloon so that its stretch enough so that it can be put onto bottle. ( Balloon is made out of Polychloroprene ) ( Polychloroprene is a chemical stability and maintains flexibility over a wide temperature. ) The second step was that we use the funnel to pour in the baking soda and while the other person pour the vineger into the bottle. While that was done, take it outside and wrap the balloon. Next put the balloon upright so that all the baking soda tips into the bottle.

Observation shows that the  vineger and baking soda mix turn into a brown colour which it filled up the balloon. The Observation shows that people can hear sizzling fizz sound and you can feel it was cold.

That is ENDOTHERMIC.