Q: What plant hormone allows plants to curve in a specific direction? Choices: - peptides - pheremone - apoptosis - auxin A:
auxin

Q: A voltage source and a conductor are common to all what? Choices: - magnets - thermometers - cooling circuits - electric circuits A:
electric circuits

Q: What forms when the metal sodium gives up an electron to the nonmetal chlorine? Choices: - covalent bond - van der waals force - hydrogen bond - an ionic bond A:
an ionic bond

Q: A hypothesis is scientific only if it can be tested by what? Choices: - independent variable - making a conclusion - carbon dating - making observations A:
making observations