Some students at a middle school conducted a laboratory investigation to learn more about the physical properties of different e
lements. They observed four samples and recorded their observations in the table above. Based on these observations, which sample is most likely a nonmetal? A.
Sample 1
Muscles can also receive messages from the brain when the body temperature decreases. They respond by shivering. Shivering causes the muscles to contract and relax quickly. This process generates heat.
