A complete flower has these four basic parts: The carpel is the bottle -shaped structure in the center of the flower. Its top opening is called a stigma, followed by its neck (style) and rounded bottom (ovule). Stamen Petals surround and protect the carpel and stamen. Sepals are leaf-like structures that surround and protect the […]
Graviton
Gravity is a force between materials. The greater the mass, the greater the force of gravity, so things that have a lot of mass, such as the planet Earth, pulls things with less mass, such as a chunk of rock, to its surface. As shown in the diagram, the winner of the gravity tug-of-war between […]
Root Systems
Dandelion and grass represent the two main kinds of root systems, taproot system and fibrous root systems. The dandelion has a tap root system, which consists of a taproot that grows straight down and rootlets branching from the taproot. The grass has a fibrous root system, which consists of a main root that is not […]
Oxidation: Sparklers
Most people think of fireworks as being explosive and dangerous for children–they are very correct. But many think sparklers are safe for children. NOT TRUE! Some of the forming information is too advanced for young children, but the safety use of sparklers is. Did You Know!! 1. Water boils at 212 degrees Fahrenheit and can […]
Frog Tongue: Model and Game
Frogs have a long tongue that can extended far out of their mouths. A frog’s tongue is about one-third the length of its body. In the photo, the child’s tongue barely extends past her lips. If were one-third the length of her body, the child’s tongue would touch her belly button. Yikes! How would she […]
Develop a Hygroscopic PROJECT
How do I get started on my science fair project? Answer: 1. Select an experiment about a topic that you are interested in or pick an experiment that looks like it might be fun. 2. Read the experiment and any explanations about the science the investigation is about. For the selected experiment, the science topic […]
Borax Crystals
Need a Fast Growing Crystal? Borax crystals form from a Supersaturated Borax Solution in about three hours. Recipe for a Supersaturated Borax Solution1. Mix 1 cup of borax and 2 cups of water in a cooking pot.2. Heat the mixture to boiling, stirring so that the borax thoroughly mixes with the hot water. All the […]
Vitamin: Coenzyme
Some enzymes need a helper called a coenzyme. The job of some coenzymes is to help an enzyme do its job, which can be to put together or take apart molecules. Changes in molecules in your body can be called biochemistry. The diagram models the bonding of two molecules, A and B. 1. The coenzyme […]
Dimensional Analysis
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 […]
Stress: Elastic Limit
Stress is an applied force that causes a material to be deformed (bent out of shape.) Elastic materials are able to return to their original shape after being deformed. For example, when you pull outward on the ends of a rubber band it stretches. When you release the ends, the rubber band returns to its […]
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