FYI: I am still finding links that don’t work, but I am fixing them as quickly as possible. Experiment Ideas Below A Note from Janice’s Desk We have interesting neighbors. One year there were 5 buffalo in a field near our house. I wanted to take a picture with them and did. As I posed […]
Ratios
A ratio is the relationship between two amounts. A ratio can be expressed as a fraction. What comes to mind is icing cupcakes. If I use one cup of vanilla cake icing to ice 4 cupcakes, and one cup of chocolate icing to ice 2 cup cakes, which cup cakes have more icing on them, […]
Inertia
What is the difference between these science terms: inertia, mass, weight? Inertia measures how difficult it is to move an object. Mass measures how much material is in an object. Weight measures the force of gravity acting on an object. Often times referred to how heavy an object is. Problem: Compare Freddie (a small stuffed toy) […]
Density
You can easily describe and/or calculate the density of substances if you understand that density is nothing more than a ratio comparing two quantities. The things being counted may vary but all densities are ratios that compare the quantity of a substance in a specific volume (or area). Densities can be demonstrated using paperclips and […]
Stars: Birth and Death
The photo shown was taken by the Hubble Space Telescope. Astronomers describe it as representing the life cycle of stars. The bright blue area on the upper left is a blue supergiant, which is a dying star. Sugergiants are very bright and have a diameter over 100 times that of the Sun. The golden region […]
Black Light
What is a Black Light? What are Phosphors? “Black Light” seems to be an erroneous name because when a black light is turned on in a dark room, everything is bathed in a beautiful purple color. But what you do not see is the ultraviolet radiation that is being emitted. In black lights, the radiation […]
Science Magic: Floating Ball
Science has a magical appeal for children. While they are entertained by science demonstrations, nothing is as captivating as something they can do themselves. The young man in the picture attended a GRANDMA SCIENCE PRESENTATION. As part of the program the boy was asked to hold a hairdryer so that the air blew upward. He […]
Is Science Just for Guys?
Do more guys become “scientists” than do girls? Yes, but it has nothing to do with any differences in abilities.I started college with a desire to become a scientists of some kind and I did–I taught secondary science and was a wife and mom. Most would not describe teaching and homemaking as being a scientists. […]
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 […]
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 […]