A 1993 study suggests this type of screening may be unnecessary for low-risk pregnant women
Germicidal lamps emit these rays
The Ultra High Frequency band on your TV starts at this channel
It's a one-person plane powered by a small engine
This blue pigment was once made from crushed lapis lazuli
You're "wiser" if you know it's a small pointed structure on a stem that grows into a flower or a leaf
A neutral atom will become one of these when it gains or loses an electron
About 4.5 billion years old, it's the closest G2 type star to where you're standing
Ir"resistable" German physicist with a law about the flow of an electric current
This word, used with "theory" & "mechanics", is from the Latin for "how much"