7th Grade 1st Semester Review Part 2

Front

How many atoms are represented in the reactants in the equation?

Back

5

Front

What is the difference between the velocity and the speed of an object?

Back

Velocity has a direction associated with it, while speed has no specific direction.

Front

What would you find at a convergent boundary between two pieces of continental crust?

Back

Mountain

Front

How many Hydrogen atoms are on the product side of this chemical equation: 2H2 + O2 ---> 2H2O?

Back

4

Front

What is the force that causes massive objects to pull other objects towards them?

Back

Gravitational pull

Front

What is the definition of velocity?

Back

Velocity is the speed of an object in a specific direction.

Front

What is the definition of speed?

Back

Speed is the distance traveled per unit of time, without regard to direction.

Front

What is a convergent boundary?

Back

A convergent boundary is where two tectonic plates move towards each other, often causing mountains or earthquakes.

Front

What is the law of conservation of mass?

Back

The law states that mass is neither created nor destroyed in a chemical reaction.

Front

What is an example of gravitational pull?

Back

The force that keeps planets in orbit around the sun.