Proper Hand Washing Can Stop the Spread of Disease

People used to believe that disease was caused by miasma, a poisonous vapor which carried particles of rotting materials that caused illness. People knew that eating spoiled food, drinking dirty water, or breathing polluted air could make you sick, so this idea made sense to people who did not know that microorganisms—tiny living creatures too small to be seen by the naked eye—even existed. People did not know that diseases could be passed from one person to another. Even doctors would go from one sick person to another without washing their hands. In 1847 Ignaz Semmelweis dramatically reduced the deaths due to puerperal fever in his hospital in Vienna, Austria when he required that physicians wash their hands in chlorinated lime solutions before touching patients. Hand washing is still the first line of defense in preventing the spread of disease, but if your hands aren’t washed properly you can still pass germs to others.

Lesson Files

Lesson Plans

The Science of Spherification

Environmental Science, Physical Science, Physics, Life Science, Earth Science,
MS.PS1A.b,

Forget drinking your juice. Instead, try snacking on it! Use the steps and recipes in this food science project to transform drinks into semi-solid balls that pop in your...

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Turn Milk Into Plastic

Environmental Science, Physical Science, Physics, Life Science, Earth Science,
MS.PS1A.b,

“Plastic made from milk” —that certainly sounds like something made-up. If you agree, you may be surprised to learn that in the early 20th century, milk was...

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Proper Hand Washing Can Stop the Spread of Disease

Environmental Science, Physical Science, Physics, Life Science, Earth Science,
LE.ETS1B.a,

People used to believe that disease was caused by miasma, a poisonous vapor which carried particles of rotting materials that caused illness. People knew that eating spoiled...

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How Germs Spread

Environmental Science, Physical Science, Physics, Life Science, Earth Science,
LE.ETS1B.a,

People used to think that angry gods caused disease, or that a poisonous vapor that came from rotting food or bad air caused illness. It took thousands of years for people to...

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Van De Graaff Generator Activities

Environmental Science, Physical Science, Physics, Life Science, Earth Science,
UE.PS2B.b,

A set of activities to show how the generator works and the principles behind it.

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Calorimetry Lab

Environmental Science, Physical Science, Physics, Life Science, Earth Science,
HS.PS3D.a,

How does the energy content in lipids and carbohydrates differ? Energy content is the amount of heat produced by the burning of a small sample of a substance and heating...

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Owl Pellet Surprise

Environmental Science, Physical Science, Physics, Life Science, Earth Science,
UE.ESS2E.a,

This fun, hands-on introductory dissection is a great springboard for teaching the techniques of using a science notebook while having students engage in the...

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Stream Table Investigation

Environmental Science, Physical Science, Physics, Life Science, Earth Science,
UE.ESS2E.a, UE.ESS2A.a,

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Boiling by Pressure Drop

Environmental Science, Physical Science, Physics, Life Science, Earth Science,
HS.PS1A.c, HS.PS2B.c,

The goal of this experiment is to demonstrate that boiling is not just a function of temperature, as most people believe. Rather, it is a function of both temperature and...

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How to Make Water Cycle in a Bag

Environmental Science, Physical Science, Physics, Life Science, Earth Science,
LE.ESS1C.a,

https://www.mobileedproductions.com/blog/how-to-make-a-water-cycle-in-a-bag

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How do Antibiotics Affect Bacteria When They are Put Together

Environmental Science, Physical Science, Physics, Life Science, Earth Science,

Plan and carry out investigations: collaboratively, in a safe and ethical manner including personal impacts such as health safety, to produce data to serve as the basis...

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Building a Generator

Environmental Science, Physical Science, Physics, Life Science, Earth Science,

Students work individually or in pairs to follow a set of instructions and construct a mini generator which powers a Christmas light. Best done as a take-home assignment.

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Conservation of Momentum with Vernier

Environmental Science, Physical Science, Physics, Life Science, Earth Science,
HS.PS2A.b,

Teacher leads a demonstration with vernier carts of different/equal mass, equipped with bumpers and magnets to demonstrate a variety of scenarios in which as both carts...

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3rd Law with Vernier

Environmental Science, Physical Science, Physics, Life Science, Earth Science,
HS.PS2A.a,

After learning about the 1st law of motion, students partake in a teacher-led series of questions about 2 carts, and which cart will experience a greater force. The teacher...

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Gravitational Acceleration

Environmental Science, Physical Science, Physics, Life Science, Earth Science,
HS.PS2A.a,

In 2-3 person groups, students take the mass of assorted objects, then hang them from a spring scale to find their gravitational force. Using the F=ma equation, they rewrite...

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Electricity and Magnetism Stations

Environmental Science, Physical Science, Physics, Life Science, Earth Science,

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Egg Drop Lab

Environmental Science, Physical Science, Physics, Life Science, Earth Science,
HS.ETS1A.a, HS.PS2A.c,

Students work in teams to design a container for an egg using provided materials. Students drop their containers, then analyze factors which can minimize force on the...

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How Does Volvo Keep Drivers Safe?

Environmental Science, Physical Science, Physics, Life Science, Earth Science,
HS.ETS1C.a, HS.PS2A.c,

Students watch a series of short videos explaining how cars are designed with crumple zones, airbags, and automatic braking to prevent passenger damage in a collision....

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