What was the primary means of transportation before the invention of the wheel?

Walking was the primary means of transportation before the invention of the wheel.

True or False: The Wright brothers invented the steam engine.

False; the Wright brothers invented the airplane.

Riddle: I am a mode of transport that flies high, invented by two brothers who aimed for the sky. What am I?

Airplane

What advancements in transportation occurred in the 19th century?

The steam engine and the railroad were invented in the 19th century.

Fill in the blank: Bullock carts and chariots were created after the invention of the ___ and the use of ___ for pulling.

Wheel; animals

Which two types of transport are associated with waterways?

Motorized boats and ships are associated with waterways.

What factor often determines the choice of transport mode?

The distance to be traveled and how fast one wants to reach the destination often determine the choice of transport mode.

In ancient Egypt, the unit of length known as the cubit is defined as the distance from ___ to ___.

The elbow to the fingertips.

True or False: The International System of Units (SI units) has the meter as its standard unit of length.

True.

Fill in the blank: The length of one kilometer is equal to ___ meters.

1000.

Riddle: I am a unit of measure, used by many long ago, from your foot to your finger, my distance you can know. What am I?

A body part used as a unit of measurement.

What is the primary purpose of establishing standardized units of measurement?

To ensure consistency and make calculations easier worldwide.

What is the basic division of a meter in the metric system?

A meter is divided into 100 equal divisions called centimeters.

What is the correct procedure for measuring the length of an object using a ruler?

Place the ruler along the edge of the object with the zero mark at one end, note the reading at the other end, and ensure your eye is directly in line with the measurement for accuracy.

Rulers are used to measure the length of both ___ and ___.

Straight lines and curved lines

True or False: You should look at the ruler from an angle to get a more accurate reading.

False: You should look directly in line with the measurement to obtain accurate readings.

Fill in the blank: A non-stretchable string or thread is used to measure the length of a ___ line.

Curved

What is the importance of eye position when taking measurements?

The correct eye position ensures that measurements are taken accurately by allowing you to see the exact point on the ruler where the measurement is being made.

What types of lines can a ruler measure?

A ruler can measure both straight lines and curved lines using a non-stretchable string.

How should you position the ruler when measuring an object?

The ruler should be placed along the edge of the object with the zero mark aligned at one end.