Fifth Grade Science Volume 2, Textbook Edition

Description

"Building a Boat" Sinking and Floating PPT Courseware 2

raft

A raft, a raft made of long timbers bundled together, is a simple means of water transportation. The material is mostly the branches of tall trees.

canoe

A canoe, also known as a canoe, is a boat made of a piece of wood. It is the "ancestor" of ships and the earliest ships and has appeared all over the world.

Paddle wheel

Paddle wheel, also known as paddle wheel propeller, is a propulsion tool for ships. It uses the rotation of the paddle wheel and the blades to move water to propel the ship. The paddle wheel propeller is one step further than propellers, oars and other propulsion tools. However, its structure is bulky and inefficient, especially in wind and waves. Therefore, the paddle wheel propeller was later replaced by a propeller.

think

1. Boats are a great invention of mankind. Since the advent of boats, people can travel on the water freely and conveniently, and can also transport a lot of goods to distant places. Today let's build a boat. Let's have a unique boat building competition to see who can build a boat with the largest carrying capacity.

2. Today the teacher and the students will build a boat together. How should the boat be built?

Make a boat race out of plasticine

Principle: For the same weight of plasticine, the larger it is immersed in water, the easier it is to float, and its loading capacity also increases.

Competition requirements:

1. Use the same volume of plasticine of the same brand

2. No other additives allowed

3. Compete with who can make a boat with a larger loading capacity

4. Time limit is 10 minutes

my ship building plan

1. Preparation

1. Decide what kind of boat to build; 2. Prepare the required materials.

2. Production

1. Draw a sketch of the boat; 2. Make it by hand.

3. Improvement and completion

1. Try it in water and find out the areas that need improvement;

2. Demonstrate and introduce my boat. What features does my boat have?

3. Is there anything that needs to be improved on my boat?

4. Communication: What areas need improvement in my or my classmates’ boats?

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For more information about the "Sink and Float Build a Boat" PPT courseware, please click the "Sink and Float Build a Boat ppt" tab.

"Building a Small Boat" sinking and floating PPT download:

"Building a Small Boat" Sinking and Floating PPT Download Part One: Exploring and experimenting with building a boat using plasticine. Discussion: Plasticine sinks in water. If a certain amount of plasticine is used to build a boat, how can one build a boat that can load a boat? What about ships with larger volumes? Which ship loads...

"Building a Boat" Sink and Float PPT:

"Building a Small Boat" Sinking and Floating PPT Part One: Building a Boat with Plasticine Boats are a great invention of mankind. Since the advent of boats, people can travel on the water freely and conveniently, and can also transport a lot of goods to distant places. Let's build a boat out of plasticine..

"Building a Boat" Sinking and Floating PPT Courseware 3:

"Building a Small Boat" Sinking and Floating PPT Courseware 3 The development history of boats Rafts, canoes, paddle wheels, sailing boats, hovercrafts, ocean-going cargo ships, modern passenger ships, aircraft carriers Thoughts 1. Boats are a great invention of mankind. Since the advent of boats, people can travel freely and conveniently on the water...

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Update Time: 2024-09-30

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