Salt and pepper are placed together in a container. When the container is shaken, the salt and pepper become a
A: mixture.

A chewable calcium carbonate tablet is a common treatment for stomach discomfort. Calcium carbonate is most likely used as this type of medicine because calcium carbonate
A: neutralizes digestive acid.

When scientists publish papers describing the results and conclusions of their experiments, members of the scientific community should
A: evaluate the evidence in the paper.

Which list contains only things that are part of our solar system?
A:
planets, moons, comets