Why is a control group important in an experiment?

Dew forming on grass is an example of condensation

Which statements correctly describe atmospheric pressure? A) It's the same everywhere in the atmosphere. B) It pushes on all objects that are on Earth's surface. C) It can be measured in atmospheres or kilopascals.

What type of reaction is sodium reacting with chlorine

Who asks scientific questions

Which of these is the lowest subgroup? kingdom, order, genus, or species.

Describe What kind of ions do metals form? What kind of ions do nonmetals form?

A car is driven through streets treated with salt and then parked in a warm garage. a) How will the rate of rusting compare with a car that has not been driven in the streets treated with salt but left parked outside?

Amalgam is an alloy that contains mercury and other metals. Which of these atoms would most likely form metallic bonds with mercury? Check all that apply. bromine copper hydrogen iodine silver tin

Which fossil fuel is the most widely consumed in the United States? A. petroleum B. natural gas C. peat D. coal

Why is the use of natural gas as a full becoming more common