Dark matter holds galaxies together Without it the outer stars would escape Dark matter holds clusters of galaxies together Without it, the clusters would disperse Dark […]
A box contains 2 plain pencils and 2 pens. A second box contains 7 color pencils and 3 crayons. One item from each box is chosen at random. What is the probability that a […]
Learn how data can be collected to investigate the way salinity affects mixing. This activity is important to your understanding of the lab. It contains many […]