How are the Calories in food related to the energy your body uses? Think about not only the energy your body uses when moving or doing exercise, but also the energy needed to live (hint: think about body systems-
cardiovascular, musculoskeletal, respiratory digestive, etc)

What are transitions between a liquid and a solid called? identify which way they are transitioning

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?

While in europe, if you drive 125 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car’s gas mileage is 32.0 mi/gal? assume that 1 euro=1.26 dollars