Why Do Leaves Turn Brown in the Fall?
Why Do Leaves Turn Brown in the Fall? The leaves of trees turn brown in autumn when they lose a green substance called chlorophyll. All spring and summer the leaves on...
Read More
Why Can’t We See the Stars in Daytime?
Why Can’t We See the Stars in Daytime? The stars shine all the time, day and night. We do not see them in daytime because of the glare of sunlight. The sun’s...
Read More
Why Does the Sun Look Red at Sunset?
Why Does the Sun Look Red at Sunset? Sunlight, before it reaches our eyes, must pass through the Earth’s atmosphere. The dust and water particles in the air...
Read More
Why Is It Hotter in Summer than in Winter?
Why Is It Hotter in Summer than in Winter? During the summer, the sun shines most directly on the earth, bringing more heat. The earth tilts, or tips, a little to one...
Read More
What Are the Dark Spots on the Moon?
The dark spots we see on the moon are really the moon’s large flat plains. The moon’s rugged surface is covered with mountains, craters, and great lava...
Read More