This video tutorial teaches the conversion between grams and kilograms using the metric system. It explains the prefixes used in metric units, such as milli, centi, and kilo, and how they relate to the base unit, the gram. The tutorial provides examples of converting grams to kilograms and vice versa, using both conversion charts and division. It also includes practical problems to illustrate these conversions, such as determining if a truck can cross a bridge based on its weight. The video concludes by comparing weights of different objects to reinforce the concept of conversion.

What is the purpose of a conversion chart?

• To calculate the area of a space

• To measure the weight of an object

• To convert one unit to another without changing the size

• To change the size of a unit

In the metric system, what is the main unit for weight?

• Gram

• Kilometer

• Ounce

• Pound

What does the prefix 'milli' mean?

• One tenth

• One thousandth

• One millionth

• One hundredth

How many grams are there in one kilogram?

• 2000

• 100

• 500

• 1000

If Mikey needs 5000 grams of stone, how many kilograms does he need?

• 4 kilograms

• 3 kilograms

• 2 kilograms

• 5 kilograms

What is the weight limit for trucks on the bridge in grams?

• 2500 grams

• 2000 grams

• 1500 grams

• 1000 grams

Would a truck weighing 1950 grams be allowed on the bridge?

• No, because it is too light

• Yes, because it is under the limit

• No, because it exceeds the limit

• Yes, because it is exactly the limit

Which weighs more: 1000 grams of rocks or 1 kilogram of feathers?

• 1000 grams of rocks

• They weigh the same

• 1 kilogram of feathers

• It depends on the material

Why is it important to convert units before comparing weights?

• To change the size of the objects

• To avoid using the metric system

• To make the objects heavier

• To ensure accuracy

What should you do when comparing weights with different units?

• Ignore the units

• Convert the units to be the same

• Use the larger unit

• Use the smaller unit