Suppose a friend challenges you to separate a mixture of wood shavings, iron filings, sand, and sugar. The image shows the mixture of the four items. Think about the components of the mixture. Consider how the unique properties of each component might suggest a method you can use to separate it from the rest of the mixture. 1. What tools do you think you could use to separate the mixture into its components? Explain your reasoning.

You exhale co2 which is produced during cellular respiration.  co2 combines with the water in your blood's plasma to make up one half of the body's most important buffer pair, carbonic acid.  the more physical activity you engage in, the more co2 your body is producing.  you can see this by putting some of the cabbage indicator in a glass and then blowing bubbles into it through a straw.  can you see a change in the color of the indicator?