Botany
Chemistry
Physics
Astronomy
Biology
100

What is the term used to describe the means by which the male and female cells combine to form a new cell which then eventually develops into a new embryo?

Fertilization

100

Which element has the symbol Au?

Gold

100

Where does sound travel faster; water or air?

Water

100

Name the 2 closest planets to the Earth.

Venus and Mars

100

Which organ in the body can process pain but cannot feel it?

Brain

200

What is the botanical name for the male reproductive organ in flowering plants?

Stamen

200

Which element is used as a disinfectant, as a bleaching agent and to purify water?

Chlorine

200

True or False: is lightning 3x hotter than the sun?

True!

200

The three main parts of a comet are the nucleus, the tail, and which one of the following -- Zenith, Umbra, Coma, or Radiant?

Coma

200

How many bones are babies born with that reduce to 206 when they turn into adults?

300 bones

300

What is the process by which the microspores of a seed plant are transferred to another compatible plant of the same type?

Pollination

300

After hydrogen and helium, what is the most abundant element in the universe?

Oxygen. Hydrogen and Helium are estimated to make up roughly 74% and 24% of all matter in the universe respectively. 

300

True or False: the Eiffel Tower is taller in the summer than in the winter.

True! Metals expand as they are heated, and this can cause metal structures to stretch with temperature changes. 

300

What color is Saturn?

Saturn has a pale yellow hue due to ammonia crystals in its upper atmosphere.

300

True or False; all invertebrates are cold-blooded.

True!

400

What is the name of the ripened ovary which contains the seeds in many plants?

Fruit

400

If a liquid had a ph of 6 – would it be Acid, Alkali or Neutral?

Acid

400

What is Light Amplification by Stimulated Emission of Radiation also known as?

LASER

400

Which planet has the largest ocean?

Jupiter

400

What is the power house of the cell?

Mitochondria

500

What is the name of the structure that is formed from the ovule of a plant after fertilization has taken place?

Seed

500

Pb is the chemical symbol for which element?

Lead

500

What is the opposite to matter?

Antimatter

500

How many Earths could fit inside the sun?

1 million

500

What is the substance that makes up our nails?

Keratin