Explain how a skateboard resting on the ground contains energy. If the skateboard were moving, would it have more energy than it did at rest? Explain.

Full Marine Food Chain • jellyfish • plankton • shark • bacteria • small fish • turtle

The reaction takes place in water. What happens to the equilibrium when the pressure is increased? a) It favors formation of products. b) It is conserved. c) It favors formation of reactants. d) It does not change

Which of the following is the best defense against all germs? cleanliness vaccination antibiotics isolation

Does oxygen have luster?

Which of the following is a result of temperature? A. Oxidation B. Frost wedging C. Exfoliation D. Erosion

How do an isotope and a radioactive isotope differ?

What is a cause of polarity in water molecules?

Which is the force of attraction that holds atoms together? A. gravity B. friction C. physical bond D. chemical bond

Chemical bonding ranges from even electron sharing to total electron transfer because Select one: a. atoms on the periodic table have many different electronegativities b. some atoms can make more bonds than other atoms can c.

An atom that has the same amount of atoms of each element on both sides of the reaction obeys what law