Each of the three magnets shown has been dipped into the substance below it. Which of the substances could be coffee?

On the diagram, hills and valleys are shown by means of contour lines. Each contour line indicates that all points on the line have the same elevation above sea level. In which direction does the river flow?

Immediately before and after running a 50 meter race, your pulse and breathing rates are taken. What changes would you expect to find?

The diagram shows a graduated cylinder containing water. From which position will the most accurate measure of the volume of the water be made?

The walls of a building are to be painted to reflect as much light as possible. What color should they be painted?

Which diagram best shows what happens when light passes through a magnifying glass?

The sequence of energy changes shown in the diagram explains which event?

The best reason for including protein in a healthy diet is because it is the main source of ______.

Which layer in the diagram contains the most organic material?

People get energy from the food they eat. Where does the energy stored in food come from?