The element copper has 29 protons. What is the atomic number of copper?

Cheryl has a mug she says is made up of matter. Heather says that the hot choclate inside the cup is made up of matter too. Keaton says that the steam coming from the cup is also made up of matter.

Three balls were measured and placed in a liquid. Based on the following data, what could be the density of the liquid?

How will a lens with a short focal length bend light? a. a lot b. a little c. not at all d. it depends of the height of the lens.

If an object gains an additional 5 m/s of speed every second, the object is? A decelerating B accelerating C Moving at a constant speed D Moving at a constant velocity.

Compare and contrast the processes of fission and fusion

Noah Formula is in an airplane which is flying at constant speed in a circular course of radius 6500 m, circling O'Hare's airplane prior to landing. Noah observed that the plane completes each round trip in 345 seconds (5 minutes & 45 seconds).

Two pieces of metal with exactly the same mass are placed on a surface in bright sunlight. The temperature of the 1st block increases by 3°C while the temperature of the 2nd increases by 8°C. If the specific heat of the 2nd block is 0.

The correctly balanced equation for H202 - H2O + O, is A) H202 - 2H2O + O2 B) H302 - H20+20, C) 2H, 02 - - 4H20 + 0, D) 2H, 02 - 2H30 + 0,

What happens to the wavelength of a wave if you increase the frequency?

In a transverse wave, the particle motion is what to wave motion? A. perpendicular B. parallel