A student is using colored beads to make a model of aluminum sulfate, Al2(SO2)3. Alu atoms are represented by blue beads, sulfur atoms by yellow beads, and oxygen aton

green beads.

What combination of beads should the student use for the model?

Science

(drag each tile to the correct location.) categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. - a tentative statement used to guide scientific investigations. - makes predictions about future events. - can be tested by many independent researchers. - based on observations of natural phenomena. - a well-established, highly reliable explanation.

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm

How can we use spectral lines of light coming from the superclusters to identify which is receding from earth at the slowest rate.