Grade 9 Knowledge Quiz

1. There are 7 continents.

True

False

The statement "There are 7 continents" is true. The Earth is divided into seven large land masses called continents, which are Africa, Antarctica, Asia, Europe, North America, Australia, and South America. These continents are distinct regions with their own unique geography, climate, and ecosystems.

Explanation

The statement "There are 7 continents" is true. The Earth is divided into seven large land masses called continents, which are Africa, Antarctica, Asia, Europe, North America, Australia, and South America. These continents are distinct regions with their own unique geography, climate, and ecosystems.

2. Nitrogen is the chemical element with the symbol N.

P

K

L

N

The correct answer is "N" because nitrogen is the chemical element that is represented by the symbol "N".

Explanation

The correct answer is "N" because nitrogen is the chemical element that is represented by the symbol "N".

3. What is the symbol for Pottasium?

Pt

K

Po

P

The symbol for Potassium is K.

Explanation

The symbol for Potassium is K.

4. Who invented the Periodic Table?

Dmitri Mendeleev

Britney Spears

Janson Mendeleev

John Dalton

Dmitri Mendeleev is credited with inventing the Periodic Table. He was a Russian chemist who organized the elements based on their atomic mass and properties, creating a system that allowed for the prediction of undiscovered elements. Mendeleev's Periodic Table formed the foundation for modern periodic tables and greatly contributed to the understanding of chemical elements and their relationships. Britney Spears, Janson Mendeleev, and John Dalton are not associated with the invention of the Periodic Table.

Explanation

Dmitri Mendeleev is credited with inventing the Periodic Table. He was a Russian chemist who organized the elements based on their atomic mass and properties, creating a system that allowed for the prediction of undiscovered elements. Mendeleev's Periodic Table formed the foundation for modern periodic tables and greatly contributed to the understanding of chemical elements and their relationships. Britney Spears, Janson Mendeleev, and John Dalton are not associated with the invention of the Periodic Table.

5. Hydrogen is an element and has 3 atoms. One being hydrogen and the other 2 being oxygen.

True

False

Hydrogen is an element that consists of only one atom. It does not have any oxygen atoms associated with it. Therefore, the statement that hydrogen has 3 atoms, with one being hydrogen and the other two being oxygen, is incorrect.

Explanation

Hydrogen is an element that consists of only one atom. It does not have any oxygen atoms associated with it. Therefore, the statement that hydrogen has 3 atoms, with one being hydrogen and the other two being oxygen, is incorrect.

6. The Great Wall of China is the only man-made structure visible from space.

True

False

While the Great Wall of China is an impressive feat of engineering, it is not visible from space with the naked eye. This is a common misconception. Many man-made structures, such as cities, highways, and airports, can be seen from space, especially with the aid of telescopes or high-resolution cameras.

Explanation

While the Great Wall of China is an impressive feat of engineering, it is not visible from space with the naked eye. This is a common misconception. Many man-made structures, such as cities, highways, and airports, can be seen from space, especially with the aid of telescopes or high-resolution cameras.

7. The blue whale is the largest fish.

True

False

The given statement is incorrect. The blue whale is not a fish but a mammal. It is the largest mammal and the largest animal on Earth, but it is not a fish.

Explanation

The given statement is incorrect. The blue whale is not a fish but a mammal. It is the largest mammal and the largest animal on Earth, but it is not a fish.

8. In Canadian Football, there are only 3 downs, and each team has 10 players.

True

False

This statement is incorrect. In Canadian Football, there are actually 3 downs, not 4 like in American Football. Additionally, each team has 12 players on the field, not 10.

Explanation

This statement is incorrect. In Canadian Football, there are actually 3 downs, not 4 like in American Football. Additionally, each team has 12 players on the field, not 10.

9. A poem is a piece of writing that describes how a person sees the world.

True

False

A poem is not solely limited to describing how a person sees the world. While some poems may indeed offer personal perspectives on the world, poems can also explore a range of emotions, tell stories, convey abstract ideas, or experiment with language and form. Therefore, it is not accurate to say that a poem is only about describing an individual's perception of the world.

Explanation

A poem is not solely limited to describing how a person sees the world. While some poems may indeed offer personal perspectives on the world, poems can also explore a range of emotions, tell stories, convey abstract ideas, or experiment with language and form. Therefore, it is not accurate to say that a poem is only about describing an individual's perception of the world.