What element is white shiny metallic solid reacts slightly to air and the density is 1.55

Electromagnetic waves vary in A. wavelength and frequency. B. the way they reflect. C. the orientation of their electric and magnetic fields. D. the speed they travel in a vacuum.

Is the following sentence true or false? Clouds form when water vapor in the air condenses to form liquid water or ice crystals.

Mr. Thorton, the science teacher, was explaining the difference between kinetic and potential energy. He compared the difference to a wind-up toy.

Which state of matter is this: Particles vibrate and cannot change positions

Salt concentration would be an example of what type of factor in an ecosystem? A. food production B. abiotic C. biotic

True or False: DNA is our genetic make-up. It is why we have a certain eye color, and hair color, etc.

Which hybrid orbitals would be formed if one s orbital and three p orbitals combined?

The way light bounces off a minerals surface is describe by the minerals

Physical properties can be used to describe matter. Some properties are dependent on the amount of matter present. All BUT ONE of these physical properties changes with the amount of matter. That is A) density. B) mass. C) volume. D) weight.

Which term best describes the substances that cause oil and water molecules in salad Dressing to interact and mix? surfactants miscible liquids immiscible liquids compressed molecules