Q: Exhaled air has what % of its oxygen left?

1. 26%
2. 77%
3. None
4. 48%

Q: Most meteorites are found in Antarctica and where else?

1. North Africa
2. Brazil
3. New Zealand
4. Hawaii

Q: You are making a model of the Earth and Moon to show their relative sizes and massiveness. You've decided that Earth will be a ball of clay 6 inches in diameter, so the Moon should be...?

1. A tennis ball
2. A baseball
3. A golf ball
4. A ping pong ball

Q: What type of storm has a central calm area, called the eye, which has winds spiraling inwardly?

1. Earthquake
2. Thunderstorm
3. Hurricane
4. Tornado

Q: Most of the magnetic power appears to be concentrated at certain points of a magnet. These points are called...?

1. Poles
2. Keepers
3. Pointers
4. Inductors

Q: What two elements common table salt is made out of?

1. Hydrogen and Methane
2. Sodium and Chlorine
3. Sodium and Hydrogen
4. Hydrogen and Chlorine

Q: Non-luminous bodies become visible when they _______ light into our eyes.

1. Refract
2. Reflect
3. Radiate
4. Diffract

Q: _______ materials are those that can be influenced by a magnet.

1. Optical
2. None
3. Thermal
4. Magnetic

Q: The least reactive elements of the periodic table are...?

1. Transition Metals
2. Noble Gases
3. Alkaline Earth Metals
4. Alkali Metals

Q: What measurement unit microbiologists use when they want to measure something really small (like a bacterial cell!)?

1. Micrometre
2. Centimeter
3. Meter
4. Millimeter

Q: The Law of Octaves was given by...?

1. Bohr
2. Mendeleev
3. John Newlands
4. Dobereiner

Q: The distance between the magnetic north pole and magnetic south pole of a bar magnet is called the...?

1. Length of magnet
2. Pole Length
3. Equatorial axis
4. Effective length

Q: The law that "the physical and chemical properties of elements are periodic functions of their atomic weights" was given by...?

1. Mendeleev
2. Lothar Meyer
3. Bohr
4. Moseley

Q: A _______ beam is one whose rays remain the same distance apart.

1. Intersecting
2. Parallel
3. Convergent
4. Divergent