Answer the following question given this paragraph: Electrons in the outermost energy level of an atom are called valence electrons. They determine many of the properties of an atom, including how reactive it is. Q: What do you call the electrons in the outermost energy level of an atom? Choices: - Inner electrons - shell electrons - Proper electrons - valence electrons A:
valence electrons
Answer the following question given this paragraph: Nonmetals are elements that generally do not conduct electricity. They are one of three classes of elements (the other two classes are metals and metalloids. ) Nonmetals are the second largest of the three classes after metals. They are the elements located on the right side of the periodic table. Q: What are elements that generally do not conduct electricity? Choices: - copper - metal - iron - nonmetals A:
nonmetals
Q: Answer the following question given this paragraph: the evolution of cellular respiration, which used oxygen to help harvest energy from organic molecules. Q: Cellular respiration uses oxygen to harvest what from organic molecules? Choices: - water - chlorophyll - light - energy A:
A: energy
Question: Answer the following question given this paragraph: Despite its dangers, radioactivity has several uses. For example, it can be used to determine the ages of ancient rocks and fossils. It can also be used as a source of power to generate electricity. Radioactivity can even be used to diagnose and treat diseases, including cancer. Cancer cells grow rapidly and take up a lot of glucose for energy. Glucose containing radioactive elements can be given to patients. Cancer cells take up more of the glucose than normal cells do and give off radiation. The radiation can be detected with special machines like the one in the Figure below . The radiation may also kill cancer cells. You can learn more about medical uses of radiation at this URL: http://www. youtube. com/watch?v=v_8xM-mLxJ8. Q: Cancer cells take up glucose for what reason? Choices: - heating - reproduction - food - energy A:
Answer: energy
*Question*
Answer the following question given this paragraph: An electromagnetic wave is a transverse wave that can travel across space as well as through matter. When it travels through space, it doesn't lose energy to a medium as a mechanical wave does. Q: When traveling through space what do mechanical waves lose? Choices: - Mass - Speed - Force - energy A:
**Answer**
energy
Answer the following question given this paragraph: The next structure is the stamen , consisting of the stalk-like filament that holds up the anther , or pollen sac. The pollen, which is found at the top of the stamen, is the male gametophyte. Q: What is found at the top of the stamen? Choices: - petals - fungi - pistil - pollen A:
pollen