Cells
Physical science
Earth science
Chemistry
Space science
100

Which organelle stores and protects DNA in a cell?

The Nucleus?

100

What force pulls objects toward each other, that is especially noticeable between objects and Earth?

Gravity

100

What is the earths only natural satellite?

The moon

100

What is the chemical symbol for water?

H2O

100

Which planet is known as the Red Planet?

Mars

200

What are the three states of matter?

Solid, liquid, gas

200

Is there more land or water on Earth's surface?

Water

200

What is the table that organizes all known elements according to their properties and atomic number.

The periodic table

200

What is the biggest planet in our solar system?

Jupiter

300

Which organelle is known as the "powerhouse" of the cell?

Mitochondria

300

How many bones does an adult human skeleton have?

206

300

Who was the first man on the moon?

Neil Armstrong

400

What shape is a plant cell?

Rectangular or squarish

400

What is the water cycle?

Evaporation, condensation, precipitation and collection.

400

what is a group of two or more atoms bound together by chemical forces?

a molecule

500

Which organelles are only found in plant cells?

Chloroplasts, cell wall, large central vacuole 

500

What is the smallest unit of a chemical element, made of protons, neutrons, and electrons?

An atom