Chlorine The Bacteria Killer - Revision history

imported>Stwikiadmin: moved Chlorine the Bacteria Killer to Chlorine The Bacteria Killer

2016-07-18T17:51:59Z

moved Chlorine the Bacteria Killer to Chlorine The Bacteria Killer

← Older revision	Revision as of 17:51, 18 July 2016
(No difference)

imported>Stwikiadmin at 16:24, 18 July 2016

2016-07-18T16:24:58Z

← Older revision		Revision as of 16:24, 18 July 2016
Line 1:		Line 1:
	{\| class="wikitable" style="color:black; background-color:#ddd; margin-left: auto; float:right"		{\| class="wikitable" style="color:black; background-color:#ddd; margin-left: auto; float:right"
	\| [[Biology]], [[Chemistry]]:		\| [[Biology]], [[Chemistry]]:
	\| ~~Anti~~-~~Bacterial~~ Cleaners		\| Microorganisms, Chlorine-Based Cleaners
	\|-		\|-
	\| Grade Range:		\| Grade Range:
Line 35:		Line 35:

	== Why This Works ==		== Why This Works ==
	~~'''''COMING SOON'''''~~
	~~<!--~~
	~~===Short Explanation===~~
	This is where you would provide a basic, easy-to-understand explanation of the demonstration. Try not to use too much "Science Jargon", and if needed add any explanation tips, like comparing the demo to something kids are familiar with.

	~~===Full Explanation===~~		Yeast is a ''Microorganism'', a tiny living creature that can't easily be seen without a microscope. Yeast is a fungus that is often used in baking, since it eats sugars and produces CO<sub>2</sub>, which makes dough rise for bread and other baked goods. In order for yeast to do this, they need to be in a wet, warm environment such as these test tubes of warm water. Since the yeast are inside these test tubes with warm water and sugar, they are able to eat the sugar and produce CO<sub>2</sub>, which fills the balloons over the tops of the test tubes.
	~~This~~ is ~~where you will explain the demonstration~~ in ~~full~~, and ~~provide all additional information that pertains~~ to the ~~demo. Unlike~~ the ~~short explanation above~~, ~~this should be worded so someone who is familiar with~~ the ~~topics might understand it~~. ~~If needed~~, ~~you can provide equations~~ and ~~citations for additional sources of information on the topic~~. This is ~~also where you will find some answers for trickier questions~~, such as ~~"How does a plane fly upside-down?"~~ for the ~~Bernoulli~~'~~s Principle demo~~. ~~If you want~~ to ~~add a floating box for equations~~, ~~copy~~ the ~~following:~~
			Some of the balloons are not inflating, even though they also have the warm water and sugar. This is because they have an extra "ingredient" added: chlorine bleach. Chlorine is an element that, when mixed with water, produces hydrochloric acid, a powerful acid that is used in low concentrations as a house cleaner. This is because it can destroy microorganisms such as yeast, and make it hard for future microbes to live on the surface. ''Anti-Microbial Cleaners'' are useful in making sure surfaces are clean, and destroying micoorganisms that could make people sick. This is why it is important to wash our hands and clean tables or counters before preparing food and eating at them, so to minimize the risk for illness.

	~~{\| class="wikitable" style="color:black; background-color:#ddd; text-align: center; margin: auto"~~
	~~\| This will give you~~
	~~\| a floating box.~~
	\|-
	~~\| The box will be~~
	~~\| centered for you.~~
	\|}
	~~-->~~
	== Additional Information ==		== Additional Information ==

	* This demonstration is shown another way in the [[Life on Mars]] demonstration.		* This demonstration is shown another way in the [[Life on Mars]] demonstration.

imported>Stwikiadmin at 19:52, 12 July 2016

2016-07-12T19:52:04Z

← Older revision		Revision as of 19:52, 12 July 2016
Line 14:		Line 14:
	== Materials ==		== Materials ==

	* ~~Culture~~ Tubes		* 6 Test Tubes
	* Test Tube Stand		* Test Tube Stand
	* Balloons		* Balloons
Line 29:		Line 29:

	== Demonstration ==		== Demonstration ==
	~~'''''COMING SOON'''''~~
	~~<!--~~		# Prepare the test tubes: Put a small amount of yeast in each test tube along with some sugar in each. In three of the test tubes, fill them 1/4 of the way with bleach. Add water into each test tube, filling them about 2/3 of the way, and put a balloon on each test tube. Set them all in the beaker, fill the beaker 2/3 with water, and set it on the hot plate on a low setting.
	# ~~Steps for~~ the ~~demonstration~~.		# As students come to visit your table and as the test tubes warm, the yeast will wake up and start to consume the sugar, releasing CO<sub>2</sub> and filling the balloons. Once a few balloons are noticeably filled with air, set all the test tubes in the test tube stand.
	# ~~Be sure~~ to ~~clarify on steps about any safety equipment needed~~.		# After explaining that there is yeast in each of the test tubes, ask students for ideas on why some of them aren't producing CO<sub>2</sub>. Discuss and explain.
	# ~~Make sure steps can be understood by a first-time reader~~.
	~~-->~~
	== Why This Works ==		== Why This Works ==
	'''''COMING SOON'''''		'''''COMING SOON'''''

imported>Stwikiadmin: Created page with "{| class="wikitable" style="color:black; background-color:#ddd; margin-left: auto; float:right" | Biology, Chemistry: | Anti-Bacterial Cleaners |- | Grade Range: | [[Elem..."

2016-07-12T17:36:50Z

Created page with "{| class="wikitable" style="color:black; background-color:#ddd; margin-left: auto; float:right" | Biology, Chemistry: | Anti-Bacterial Cleaners |- | Grade Range: | [[Elem..."

New page

{| class="wikitable" style="color:black; background-color:#ddd; margin-left: auto; float:right"
| [[Biology]], [[Chemistry]]:
| Anti-Bacterial Cleaners
|-
| Grade Range:
| [[Elementary School]], [[Middle School]]
|-
| Format:
| [[Hands-on]]
|}

This is your basic yeast demonstration with an addition of bleach. This demonstration is simple to set up and easy for kids to understand, but you will want towels in case there is a spill.

== Materials ==

* Culture Tubes
* Test Tube Stand
* Balloons
* Yeast
* Sugar
* Water
* Hot Plate
* 600mL Beaker
* Bleach

== Safety Precautions ==

Please read the General Safety Precautions section of the [[Demonstration Safety]] page before performing this demonstration.

== Demonstration ==
'''''COMING SOON'''''

== Why This Works ==
'''''COMING SOON'''''

== Additional Information ==

* This demonstration is shown another way in the [[Life on Mars]] demonstration.