Sedimentary rock are layers of sediments cemented together.The basic steps of this process are: Deposition of sediment. The transfer of sediments (soil particles) from one place to another causing layers after layer to form. Compaction of sediment. The squeezing together of sediments. Cementing sediment. The gluing together of sediments. During compaction the air and water […]
Sedimentary Rock
An easy way to model the formation of sedimentary rock by the processes of deposition and compaction.
Sun Shadows
Astronomy Project Ideas About Shadows Facts about Sun Shadows Because of the rotation of the Earth, the Sun appears to move across the sky from east to west. In the morning when the Sun rises above the eastern horizon, it is at a low altitude (height above the horizon), shadows are long. Sunrise is when […]
Teaching Tips
Have you ever used art to teach chemistry? In fact once I used special cotton balls that changed color with changes in the humidity (amount of moisture in the air.) The cotton was blue when the air was dry and pink when there was more moisture in the air. My students thought they were doing […]
Testing The Strength of Egg Shells
Spring and eggs just seem to go together. This is because eggs are a symbol of fertility, thus the perfect symbol for spring, which is a time of birth and growth. One of the many egg experiments that amazes kids of all ages is testing the strength of eggshells. Eggs are easily cracked if hit […]
K.I.S.S.
K. I. S. S. IS AN ACRONYM FOR Keep It Super Simple It doesn’t matter if you are working with very young children or high school seniors—introduce all science topics with short and easy investigations. Small bites at a time are easier to ingest and to digest. If the activity is fun, then kids will […]
Transpiration
Janice VanCleave describes a fun transpiration investigation with ideas for further investigations. Good ideas for science fair projects.
Weightless
I was part of a science team that tested different effects of weightlessness. To achieve a weightless environment, we flew with other teams on NASA’s KC-135,which is a plane designed for such investigations. Part of our pre-flight training was a lecture on how to best physically adapt to the continues cycle of G forces from […]
Cause and Effect
Science Fair Projects can be fun if you remember a few rules, such as: 1. Your project should be a cause/effect investigation. 2. In this type of investigation you only want two variables to change and all the other variables are kept constant. So what do these two rules mean? The easiest way to explain […]
I’ll Do It!!
There are so many wonderful support groups available to people with addictions. The list of addictions is lengthy and includes alcohol, drugs, gambling and even shopping. I am looking for a support group for people addicted to volunteering. The hand that you see in the diagram is not being raised in an effort to get […]