VanCleave's Science Fun

Your Guide to Science Projects, Fun Experiments, and Science Research

Heat Energy

By

What is Heat Energy? Heat is a form of energy that is transferred between objects with different temperatures. Heat energy always moves from a warmer material toward a material with a  lower temperature. The arm diagram shows a layer of heated air near the skin. If the air temperature around the arm is  780 F, […]

Starch Digestion in Your Mouth

By

Digestion is the process by which your body changes the food you eat to forms that your body can use for repair, building, and energy. Digestion starts in your mouth where special digestive juices change starch into sugar. Starch is a large chemical generally stored in plants and sugar is a type of chemical that […]

Simple Leaves vs. Compound Leaves

By

The diagram shows two types of leaves: Simple Leaves: A single leaf is attached to the stem. While most are attached by a petiole, it could be directly attached without a petiole. Compound Leaves : The petiole of each compound leaf is attached to a petiole-like midrib, which, in turn, is attached to the stem. […]

Eye Pupil: Dilated vs. Contracted

By

Pupil: Hole in Your Eye The pupil of your eye is the dark spot in the center of your eye. The pupil is actually a hole in your eye covered by a thin skin. Light enters your eye through your pupil. Pupils change size in response to light intensity. Pupils dilate: This means the opening […]

Altitude Sickness

By

Something to Think About 1. The Dallas Cowboys football team plays the Denver Broncos in Denver. Why does the Dallas football team have problems breathing when they arrive in Denver? Answer: The cowboys are use to the density of the air in Dallas, which is at an altitude of about 500 feet above sea level. […]

Dust Mites

By

Question: Where do dust mites live? Answers: Dust mites are microscopic organisms that feed on human dander (dead skin). They thrive in humid, warm environments. The perfect home for dust mites is in your home. They love areas such as carpet, mattresses, pillows, blankets, curtains, and upholstered furniture.In other words, dust mites live where you […]

Symbiosis: Butterflies & Flowers

By

Butterflies and Flowers The  relationship between butterflies and flowers is called symbiosis. Symbiosis: A relationship between two organisms in which the organisms benefit from one another. How Butterflies benefit flowers. Butterflies pollinate flowers, which means they transfer the flower’s pollen from one place to another and even from one plant to another. Pollination results in […]

Why Your Ears Pop

By

Question: Why are airplanes pressurized to maintain a normal atmospheric pressure on the passengers’ bodies? Answer: The internal pressure of your body is accustomed to air pressure where you live. At the altitude that airplanes travel, the pressure is much lower than your internal body pressure. Should the pressure on the outside of your body […]