What Keeps an Igloo Warm Inside?
What Keeps an Igloo Warm Inside? If you were an Eskimo living in the far north of Canada, you might build your winter house from blocks of s
Tag
Winds
What Makes the Wind Blow?
What Makes the Wind Blow? Wind is air in motion. Wind is caused mainly by the uneven heating of the air around the earth by the sun. Since t
Why Do Pine Trees Stay Green All Year?
Why Do Pine Trees Stay Green All Year? Pine trees remain green throughout the year because they don’t lose all their leaves at one time. Tre
How Fast Can Winds Blow?
How Fast Can Winds Blow? In the United States, most winds average eight or twelve miles an hour near the ground. At this speed, papers blow
What Makes Clouds and Why Do They Change Their Shapes?
What Makes Clouds and Why Do They Change Their Shapes? Clouds consist of droplets of water or tiny crystals of ice that float in the air. Cl