Chemistry
Biology
Astonomy
Physics
General science
100

What is mixture?

A combination of two or more substances that are not chemically bonded together.

100

What is a food chain?

A food chain shows the flow of energy from one organism to another.

100

What is the correct order of the planets from the Sun?

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

100

What is a force?

A push or pull on an object.

100

What do you call a baby frog?

A tadpole.

200

What is matter?

Matter is defined as any substance that has mass and takes up space.

200

What is the basic unit of all living things?

The Cell

200

Which is the hottest planet in our solar system?

venus

200

What is friction?

A force that opposes motion when two surfaces are in contact.

200

What part of the plant makes food?

The leaf.

300

What are the two elements that make up water?

Hydrogen and oxygen.

300

What is the function of the nucleus in a cell?

The nucleus controls the cell's activities and contains the genetic material (DNA).

300

Which planets have rings?

 Saturn, Jupiter, Uranus, and Neptune.

300

What is the unit of force?

The Newton

300

What do you call animals that eat only plants?

Herbivores.

400

What is the difference between a solute and solvent?

The solvent is the liquid a solute dissolves in to.

400

What is the hardest substance in the human body?

The hardest substance is tooth enamel.
400

What causes day and night on Earth?

The rotation of the Earth on its axis.


400

What is gravity?

It is the force that pulls things towards earth.

400

What part of the human body helps in digestion?

The stomach.

500

What happens to the liquid if you take away the heat?

It turns into a solid.

500

What are the levels of biological classification from largest to smallest?

The levels are: Kingdom, Phylum, Class, Order, Family, Genus, and Species.

500

What are stars made of?

Stars, like our Sun, are made mostly of hydrogen and helium.

500

 What is an example of a balanced force?

A book resting on a table, because the forces are equal and opposite, so there is no movement.


500

What is the process by which plants make their food?

Phtotosynthesis.

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