Million Whys Press logo
Million Whys PressToronto
← Book 19 videos

Book 19, Question 87 · Video

How Can a Barge Carry So Much?

Video · 1:47 · Crafty Clover explains, from A Million Whys Book 19

Barges are wide, flat boats that can carry a huge load because water holds them up! A tug boat pushes them along. One barge can carry as much as many trucks.

Read the full answer →

What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. How can a barge carry so much?

The Big Idea

Barges are wide, flat boats that can carry a huge load because water holds them up! A tug boat pushes them along. One barge can carry as much as many trucks.

Wide and Flat

Step one: the shape. A barge is a wide, flat boat, like a giant floating tray. It has lots of room for cargo like grain, coal, and gravel.

Float the Weight

Step two: floating. A boat floats when the water it pushes aside weighs as much as the boat and its cargo. A huge barge pushes aside a huge amount of water, so it can hold a huge load.

Pushed by a Tug

Step three: a tug. A small, powerful tugboat pushes a barge or a group of barges. One large river barge can carry as much as about 60 trucks, and moving goods on water takes less fuel for each ton.

A Closer Look

Let's take a closer look at a barge tow! A tugboat does the pushing. Barges are tied together. They carry heavy cargo. One barge can replace about 60 trucks.

Quick Facts

Quick facts! A tow of barges can be as long as several football fields. That is one very long boat train. Barges are an energy-saving way to move goods. Stay far back from working boats, with a grown-up.

Think Like a Scientist

Now, think like an engineer! With a grown-up, float a baking tray in a tub. Add pennies, one by one. How many can it hold before it sinks? Share what you discover with a grown-up.

Outro

A wide, flat barge floats a huge load because the water holds it up. Science is amazing! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!

Why I wrote this