Which activity is an example of a chemical change? Dissolving table sugar in water.
Drops of water forming on a cup of iced tea on a hot day.
Melting gold to make jewelry.
An old penny rusting.

Use this diagram of an animal cell to answer the question. where does the first stage of cellular respiration occur? w x y z

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d.a round-trip ride to school and back

Which process of living things produces water that enters the water cycle