Your Guide to Science Fair Topics, Ideas, Experiments, and Winning Displays
In the United States, some nails are measured in pennies, such as 10-penny, which is written 10d. The penny measurement goes back to the 15 century in England and referred to the price for 100 nails. A nail about 3 inches long would cost 10 pence per hundred. The larger the nail, the higher the [...]
Purpose To compare standard time (sun-time) and DST. Materials hammer 3-inch (7.5- cm) 16d nail or other long nail 2-by-4-by-6-inch (5-by-10-by-15-cm) wooden block. watch 2 markers -1 black, 1red adult helper Procedure 1. Ask your adult helper to hammer the tip of the nail near one end of the wooden block. The nail should be [...]
One way to introduce different shapes is to cut shapes from dough using cookie-cutters. The shapes shown are cut from a spicy dough made by mixing 1-cup of applesauce, 1-cup of cinnamon, and 2 tablespoons of white liquid glue (Elmer’s glue). What to Do 1. Combine the applesauce, cinnamon, and glue in a bowl. Stir [...]
Standard time refers to sun time, or time one would determine using a sundial. I call it REAL TIME, but that is a Janice VanCleave term. A time zone refers to a region of the Earth that has adopted the same standard time, usually called local time. Time zones were established in the in the [...]
Which carpet price is less expensive? $9.00 per square yard? $1.50 per square foot? Think! 1. The same units of measuring are needed in order to compare the prices. 2. You need to have a conversion factor between the units of square foot and square yard. 3. Remember that a conversion factor is a fraction [...]
The Author of the geometry book has a great chapter on conditional statements, which he calls “if-then statements.” This idea can be expanded to include every curriculum that I can think of, including the Bible. Just think of all the times that the Lord told the Israelite that: If they would do something, then God [...]
What is Geometry? Geometry is the mathematical study of figures and shapes. Let’s find out the difference between figures and shapes, define angles and of course, play and learn how angles form polygons–closed, straight sided figures. Figures vs. Shapes A geometric figure is the entire object, while a shape is the outer form of the [...]
The center of gravity is also called the center of mass.The center of gravity is the point at which an object can be balanced. In the photo, a line has been added to show the center of gravity of the system (chairs + the lady). The center of gravity is also the center of mass [...]
I love making paper designs by cutting piece out of folded paper. If the paper is folded into equal parts, the design formed is a symmetrical figure, such as the paper cut-out shown. The original piece of paper was folded in half twice. The first fold was from top to bottom and the second fold [...]
A symmetrical figure is an object that can be divided in half and each half is a mirror image of the other. Your hands are mirror image of each other. This means that they are alike but in reverse. Discover for Yourself Place the palms of your hands together. Note how your fingers perfectly fit [...]
ABOUT ME: Hi, I am Janice VanCleave, author of 50 best-selling science experiment books for children ages 4 through high school. I taught science for 27 years.
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