NATURE TRUE AND FALSEANSWERS TO EARTH AND SKYHOW DID YOU DO? CHECK THE ANSWERS TO THE NATURE TRUE AND FALSE EARTH AND SKY QUESTIONS. 1. TRUE When we see the north star, for example, we are seeing it as it was nearly fifty years ago, because that is how long it takes for the light that we see from it to travel from it into our field of vision. 2. WHO KNOWS? We do not know of any other planet that sustains life. Therefore it is very important that we take good care of this one we live on. 3. FALSE All of our scientific knowledge has not discovered a way to make new water in useful quantities. We can change its properties from fluid to solid (ice) or gas, but we cannot create enough to help people, plants, and animals. 4. TRUE Trees and plants break the fall of the rain. This allows the water to gently run off their stems, trunks or leaves. This prevents the soil from being washed away. 5. TRUE The magnetic attraction of our earth's north pole causes the needle on a compass to point in that direction. 6. FALSE The north pole magnetic forces interacting with the electrons of light from the sun produces the color light streamers called Aurora Borealis. 7. TRUE Think about this for a while and you will see that the weather influences all activity on earth. So, knowing and understanding weather patterns is very important. 8. FALSE The movement of the wind current is determined by things, such as gravity, heat from the sun and the rotation of the earth. 9. FALSE Wetlands (marshes, bogs, and swamps) can store water in heavy rains which prevents flooding downstream. 10. TRUE Comet McNaught, discovered in 2006, is the brightest comet in 30 years, according to the International Comet Quarterly. 11. TRUE As the earth rotates towards the east, the sun comes into view in the east and then sets in the west. 12. FALSE As the earth rotates towards the east, the moon comes into view in the east and then sets in the west. See number 11 above. 13. TRUE Same answer as numbers 11 and 12 above. 14. TRUE The moon orbits the earth once every 29.5 days. 15. FALSE The earth's shadow on the moon may darken the sky for a short time, but it is called a lunar eclipse. Night time only happens after the sun sets. 16. FALSE Meteor showers are the fireworks in the sky that happen when tiny space particles burn up as they enter our atmosphere. 17. TRUE It took the Colorado River six million years to carve out the Grand Canyon.
|