Daryl is conducting experiments on samples of pure copper (Cu). While collecting data, he records both physical and chemical properties of the metal. Which of the following is dependent on the amount of copper particles in the sample? A. electrical conductivity
B. thermal conductivity
C. mass
D. density

Through wich tissue do sugar get transported to reach the leaves during growth and reproduction

Put each tile to the correct location. categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. 1) scientific theories 2) both 3) scientific hypothesis a). a tentative statement used to guide scientific investigations b). makes predictions about future events c). can be tested many independent researches d). based on observations of natural phenomena e) . a well-established highly reliable explanation

Which nutrients contain nitrogen in addition to carbon hydrogen, and oxygen? a) vitamins. b) proteins. c) carbohydrates. d) fat