Understanding Elevation and Ratios

The video tutorial covers various educational topics, including reading a thermometer, understanding elevation above and below sea level, comparing values using number lines, calculating markup in pricing, mixing paint colors to achieve different shades, and illustrating elevation with mountains and valleys. Each section provides practical examples and explanations to enhance understanding of these concepts.

What happens to the mercury in a thermometer as the temperature increases?

• It evaporates.

• It expands and rises.

• It contracts and falls.

• It remains constant.

At what temperature does the mercury read 60 degrees above zero?

• Negative 60 degrees

• Zero degrees

• Positive 60 degrees

• Positive 40 degrees

Which is colder: negative 12 degrees or negative 5 degrees?

• Negative 5 degrees

• Negative 12 degrees

• Both are equally cold

• Positive 5 degrees

What is the elevation of the fish relative to sea level?

• 12 meters below sea level

• 28 meters below sea level

• 28 meters above sea level

• 12 meters above sea level

How do you calculate the distance between the fish and the bird?

• Multiply their elevations

• Add the absolute values of their elevations

• Subtract the fish's elevation from the bird's elevation

• Divide the bird's elevation by the fish's elevation

On a number line, which is greater: positive three or negative three?

• Negative three

• It depends on the context

• They are equal

• Positive three

Which number is greater: 24 or 12?

• 12

• 24

• They are equal

• It depends on the context

What is the opposite of negative five?

• Positive five

• Zero

• Negative five

• Negative ten

What is a markup in pricing?

• A reduction in the original price

• A fixed amount added to the original price

• A percentage added to the original price

• A discount on the original price

If a ticket costs $30 and has a 100% markup, what is the new price?

• $120

• $90

• $60

• $30