440 cause mass cant be created or destroyed
Answer: (1) Inhales (breathes in) Oxygen - good for the body - gives it to the Circulatory System to be transported throughout the body through the blood. (1) Digestive System gets nutrients (good) from food and hands it over to the blood and Circulatory System then carries those nutrients where they need to go.
<span>An element is a pure substance that cannot be broken down by further chemical techniques. Therefore you could try heating, cooling, electrolysis or other methods to see if it was an element or a compound.</span>
1) One piece of science equipment that you might not have been introduced to is the graduated cylinder. measure volume of a liquid.
2) Although you need to be careful when using a Bunsen burner, I think it is one of the most interesting lab tools to use. A Bunsen burner is a heat source used to raise the temperature.
