True or false compounds only have one type of element

How do astronomers use rocks from the moon to estimate the age of the solar system?

An example of a congential disease is A. osteoarthritis. B. appendicitis. C. Grave's disease. D. cystic fibrosis.

What type of energy transformation would be an example of using a battery to power a handheld fan? a. kinetic b. mechanical c. electrical d. potential e. thermal f. electromagnetic g. chemical h. nuclear

Which gas law describes the relationship between temperature and pressure at a constant volume

Adding powered Gatorade to water makes a tasty sution. What is the solvent in this example?

4. What is a compound? Name an example.

What is one important role that ocean waters have in heating Earth? absorb and transport solar energy transport nutrients and waste create and emit solar energy wear away rock and soil

Shelly was surprised to learn the dwarf planet Pluto used to be considered a planet. What would have had to be true for Pluto to remain categorized as a planet? Pluto would need to have an atmosphere.

Two uncharged metal spheres, #1 and #2, are mounted on insulating support rods. A third metal sphere, carrying a positive charge, is then placed near #2. Now a copper wire is momentarily connected between #1 and #2 and then removed.

Which waves can travel through a vacuum? A) light waves Eliminate B) ocean waves C) sound waves D) mechanical waves