Science Competition Training Quiz 1

Our solar system is found in what spiral-shaped galaxy?

• Hoag's Object

• Eye of Sauron

• Milky Way

• Andromeda

Answer explanation

What organ pumps blood throughout the body?

• Brain

• Lungs

• Heart

• Stomach

Answer explanation

Which diagram displays chemical elements and was invented by Dmitry Mendeleev?

• Punnett Square

• Periodic Table of the Elements

• Hertzsprung-Russell Diagram

• Histogram

Answer explanation

Which state of matter is the least dense of the four listed and will always fill its container?

• Solid

• Gas

• Liquid

• Plasma

Answer explanation

What metabolic process uses enzymes to change a substance, like using brine to turn cucumbers into pickles?

• Fermentation

• Grilling

• Cooking

• Freezing

Answer explanation

What ancient supercontinent was surrounded by the superocean Panthalassa?

• Micronesia

• Africa

• Valles Marineris

• Pangaea

Answer explanation

Cumulus, cumulonimbus, and stratus are all types of what?

• Clouds

• Rocks

• Trees

• Teeth

Answer explanation

What type of eclipse occurs when the moon blocks the sun in Earth's sky?

• Martian Eclipse

• Orbital Eclipse

• Solar Eclipse

• Lunar Eclipse

Answer explanation

A runaway greenhouse gas effect makes what second planet from the sun have the hottest surface in the solar system?

• Mercury

• Mars

• Venus

• Saturn

Answer explanation

Venus' thick atmosphere traps heat creating a runaway greenhouse effect – making it the hottest planet in our solar system with surface temperatures hot enough to melt lead. The greenhouse effect makes Venus roughly 700°F (390°C) hotter than it would be without a greenhouse effect.

Which of these animals is an example of an invertebrate?

• Eagle

• Iguana

• Honeybee

• Gorilla

Answer explanation