Q: According to the periodic table, all of the following are metals except
A: fluorine
Q: Owen tested a physical property of a mineral. He rubbed a mineral sample on a piece of white tile. The mineral left a red mark on the tile. Which of the following physical properties of the mineral was Owen most likely testing?
A: streak
Q: Why do planets stay in orbit around the Sun?
A: attraction of gravity
Q: Materials such as carbon and nitrogen go through cycles. The cycling of nitrogen waste materials is mostly dependent upon the role of which factor?
A:
bacteria