Monday, December 26, 2011
Monday, December 19, 2011
Sunday, December 11, 2011
Rocks and Minerals
- natural resources-things people use from earth (air, wind, water, rock, minerals, animals, plants)
- rock-nonliving hard part of earth. different sizes, shapes, colors, etc...
- rocks have been used as tools (arrow) and to build walls and buildings
- minerals-hard, nonliving parts of soil that can make rocks sparkle or shine (graphite in pencils, flourite in toothpaste, magnetite in magnets)
- rocks and minerals take millions of years to form in the ground
- people dig in the ground for rocks and minerals
- rocks can be made of one or more minerals
Monday, December 5, 2011
Thursday, December 1, 2011
The Solar System
- A planet is an object that moves around the sun
- The solar system is made of planets, moons, and the sun
- Solar means "of the sun"
- There are eight planets in our solar system
- The sun is the center of the system, the sun is the strongest and brightest part
- Planets closer to the sun take less time to go around the sun
- Mercury-closest to the sun, rocky
- Venus-hottest planet, thick clouds
- Earth-water, air, one moon
- Mars-two moons, red, rocky
- Jupiter-largest planet, 63 moons
- Saturn-large rings around it, made of ice and rocks, 47 moons
- Uranus has thin rings, 27 moons, Neptune is a blue planet, 13 moons
The Moon and Stars
- Light from the sun shines on the moon
- The moon does not shine it's own light
- The moon is made of rock
- The moon makes a path around the earth called an orbit
- The moon does not change shape, but the parts we can see that are lit up change shape
- Each shape of the moon that we see is called a phase
- Phases appear in the same order every month and repeat
- A star is a hot object in space made of glowing gases
- Gases give off heat and light
- Stars look tiny because they are far away
- The sun is close to Earth and looks larger, it is an average size star (normal size)
- The sun is so bright it lights up the sky in the day and we cannot see the stars
Subscribe to:
Posts (Atom)