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Damonte, Kathleen – Science and Children, 2005
A fly is buzzing around in the kitchen. You sneak up on it with a flyswatter, but just as you get close to it, it flies away. What makes flies and other insects so good at escaping from danger? The fact that insects have eyesight that can easily detect moving objects is one of the things that help them survive. In this month's Science Shorts,…
Descriptors: Entomology, Science Education, Science Activities, Vision
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Damonte, Kathleen – Science and Children, 2005
Living things respond to a stimulus, which is a change in the surroundings. Some common stimuli are noises, smells, and things the people see or feel, such as a change in temperature. Animals often respond to a stimulus by moving. Because plants can't move around in the same way animals do, plants have to respond in a different way. Plants can…
Descriptors: Plants (Botany), Science Education, Physics, Scientific Concepts
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Damonte, Kathleen – Science and Children, 2005
Look at a map and locate Seattle, Washington. Follow that latitude east to International Falls, Minnesota. These spots are at roughly the same latitude. Yet the average January temperature in Seattle is a relatively balmy 7? C (45? F) when compared to International Fall's -15? C (4? F). While traveling north, temperatures tend to go down. This is…
Descriptors: Science Education, Teaching Methods, Weather, Scientific Concepts
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Damonte, Kathleen – Science and Children, 2004
Scientists use sampling to get an estimate of things they cannot easily count. A population is made up of all the organisms of one species living together in one place at the same time. All of the people living together in one town are considered a population. All of the grasshoppers living in a field are a population. Scientists keep track of the…
Descriptors: Scientists, Sampling, Science Education, Science Activities
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Damonte, Kathleen – Science and Children, 2004
The human hand is made up of four fingers and one thumb. This month's "Home Connections" activity will help students understand the importance of the thumb for doing simple, everyday activities. Most primates (humans, apes, and Old World monkeys) and some other animals have opposable thumbs. Humans can move their thumb farther across their hand…
Descriptors: Human Body, Science Activities, Middle School Students
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Damonte, Kathleen – Science and Children, 2004
One thing scientists study is how objects move. A famous scientist named Sir Isaac Newton (1642-1727) spent a lot of time observing objects in motion and came up with three laws that describe how things move. This explanation only deals with the first of his three laws of motion. Newton's First Law of Motion says that moving objects will continue…
Descriptors: Motion, Physics, Science Instruction, Teaching Methods
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Damonte, Kathleen – Science and Children, 2004
Water is very important to plants. Plants need water to produce food and grow. Plants make their own food through a complex, sunlight-powered process called photosynthesis. Simply put, in photosynthesis, water absorbed by a plant's roots and carbon dioxide taken from the air by a plant's leaves combine to make the plant's food. This article…
Descriptors: Plants (Botany), Water, Science Activities
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Damonte, Kathleen – Science and Children, 2004
A tornado is a rotating, funnel-shaped column of air, which extends from a thunderstorm to the ground. The winds of a tornado can reach up to 480 km per hour. This is about five times faster than a car driving on a highway. Tornadoes can be almost invisible until they pick up dust and debris. This article describes an activity that stimulates…
Descriptors: Weather, Natural Disasters, Science Education, Science Activities
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Damonte, Kathleen – Science and Children, 2004
The term acid rain describes rain, snow, or fog that is more acidic than normal precipitation. To understand what acid rain is, it is first necessary to know what an acid is. Acids can be defined as substances that produce hydrogen ions (H+), when dissolved in water. Scientists indicate how acidic a substance is by a set of numbers called the pH…
Descriptors: Pollution, Chemistry, Science Activities
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Damonte, Kathleen – Science and Children, 2004
Most people have probably heard the tale about the Moon being made out of Swiss cheese because, on Earth, the Moon looks like it is full of holes. Those holes are actually impact craters, circular depressions that formed when objects, such as rocks that orbit the Sun, smashed into the surface of the Moon. The activity described in this article,…
Descriptors: Astronomy, Science Activities, Lunar Research
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Damonte, Kathleen – Science and Children, 2004
Earth's surface is always changing. Much of that change happens because of air, wind, water, and temperature differences. If you have ever observed mud and rocks being carried along by a stream of water after a heavy rain, you have observed the Earth being changed. This month's Science Shorts will investigate how the Earth changes through a…
Descriptors: Science Education, Scientific Concepts, Teaching Methods, Climate
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Damonte, Kathleen – Science and Children, 2003
Presents a science activity on the water cycle, evaporation, and condensation and describes how to build a water cycle terrarium. (YDS)
Descriptors: Elementary Education, Hands on Science, Science Activities, Science Instruction
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Damonte, Kathleen – Science and Children, 2003
Presents a hands-on science activity in which students can explore interesting science concepts related to soap, light, and color. Includes materials, directions, and related questions. (SOE)
Descriptors: Color, Concept Teaching, Elementary Education, Light