Sounds are vibrations that can travel through different materials. The pitch of a sound is how high or low the sound is. The loudness of a sound is how loud or soft it is.
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Tuesday, 27 May 2014
Friday, 23 May 2014
SCIENCE. UNIT 4. Light energy. Refraction
Science
Refraction
Video
An explanation of refraction including a practical demonstration of how Pyrex seems to disappear in vegetable oil.
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SCIENCE. UNIT 4. LIGHT ENERGY
Light - Read .......and play
The Sun, fires and lamps are all sources of light. Mirrors and other objects reflect light. They do not make their own light.
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Wednesday, 21 May 2014
Monday, 19 May 2014
SCIENCE. UNIT 4. ENERGY
Energy basics
Energy can be stored or transferred from place to place in different ways. Let's look at some examples.Read this and then you can do the activity. (Click on the picture).
SCIENCE. UNIT 4. ENERGY.
Forms of Energy Energy forms are either potential or kinetic. Potential energy comes in forms that are stored including — chemical, gravitational, mechanical, and nuclear. Kinetic energy forms are doing work — like electrical, heat, light, motion, and sound.
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