Light and Sounds
BIG IDEAS from Michigan's Science Grade Level Content Expectations (GLCEs)
Light and sound are forms of energy.
Light and sound can be described by their properties.
Light travels in a straight path.
Vibrations produce sound.
Light
Heat, electricity, light, and sound are forms of energy.
Light and sound are forms of energy.
Light travels in straight lines.
Shadows result from light not being able to pass through an object.
Light travels in a straight path and that shadows aremade by placing an object in the path of light.
When light travels at an angle from one substance to another (air and water), it changes direction.
Describe what happens to liht when it travels from air to water (straw in glass of water looks 'bent')
Objects vary to the extent they absorb and reflect light energy and conduct heat and electricity.
Demonstrate how some materials are heated more than others by light that shines on them.
Explain how we need light to see objects; light from a source reflects off objects and enters our eyes.
Sound
Vibrating objects produce sound.
Relate sounds to their source of vibrations.
The pitch of sound varies by changing the rate of vibration.
Distinguish the effect of fast or slow vibrations as pitch.
Light and sound are forms of energy.
Light and sound can be described by their properties.
Light travels in a straight path.
Vibrations produce sound.
Light
Heat, electricity, light, and sound are forms of energy.
Light and sound are forms of energy.
Light travels in straight lines.
Shadows result from light not being able to pass through an object.
Light travels in a straight path and that shadows aremade by placing an object in the path of light.
When light travels at an angle from one substance to another (air and water), it changes direction.
Describe what happens to liht when it travels from air to water (straw in glass of water looks 'bent')
Objects vary to the extent they absorb and reflect light energy and conduct heat and electricity.
Demonstrate how some materials are heated more than others by light that shines on them.
Explain how we need light to see objects; light from a source reflects off objects and enters our eyes.
Sound
Vibrating objects produce sound.
Relate sounds to their source of vibrations.
The pitch of sound varies by changing the rate of vibration.
Distinguish the effect of fast or slow vibrations as pitch.