Why does cold water sink, while warm water layers on top?

What ecosystem can you find snails in

Forest decline, like this, is a new phenomenon that is directly related to the activities of man on Earth. High altitude defoliation is common in the eastern United States, Europe, and Japan due to the effects of

Sam and Ben collected some pond water for science class. They wanted to see what was living in the water. They could see green algae, but Sam believed there were other things there as well.

What is produced and released when glucose and fructose combine to form sucrose?

Put the planets in order based on the length of time it takes them to orbit the Sun

What are RNA used for?

What did frederick griffith want to learn about bacteria?

Which type of chromosome alteration results in the formation of a tetravalent (cross-like) structure at synapsis?

When place in water eggs will float with the light side down. What is the advantage of this?

How is a warm front different from a cold front? Warm fronts cause snow flurries in the winter, while cold fronts cause several days of rainy weather. Warm fronts cause rapid changes in weather, while cold fronts cause several days of cloudy weather.