I am a negative subatomic particle.

Most elements found on earth are

Atomic number is the number of

Elements touching the stair step are

Electrons orbit in an atom's

Metals

Columns on the periodic table are

The element most like Na is

I am a noble gas with an with 8 valence electrons in the 5th energy level

If atoms gain electrons, they become

If atoms lose electrons, they become

Density is

Table salt is a compound of

Rotation is

Revolution of the earth

Spring tides occur when the moon and sun are in parallel alignment of the earth.

Happens first after a new moon

A full moon occurs about ___________ days after a new moon

On the Electromagnetic Spectrum, the longest wavelengths are

All waves on the Electromagnetic Spectrum travel at the speed of light.

In visible light, the color with the longest wavelength is

In visible light, the color with the highest frequency is

The higher the frequency, the shorter the ________ .

Frequency is measured in

Water is

Which is bigger

Tides are caused by

Seasons are caused by

The sun fuses fuses together hydrogen and makes

Fusion means

Fission means

To measure from galaxy to galaxy, measure in