STEM in Sailing

By Proj STEMulate

Ice breaker!

Introduce yourselves and your favourite sports!

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1. Be respectful — listen to facilitators
2. Learn safely, do not put yourself or others in danger
3. Surrender your devices to the front
4. Remain inside the classroom & seated at all times, and ask for permission before going to the washroom

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Introductory Video!

01

So, how does the boat remain above water?

Buoyancy!

01

makes things float or sink in a fluid, like water. Imagine holding a beach ball underwater—it pops back up, right?

What affects buoyancy?

A ping pong ball VS a golf ball

The object’s weight

Salt water is denser than freshwater. Special: the Dead Sea!

The fluid’s density

Every object is buoyed upwards by a force equal to the weight of the fluid the object displaces

What affects buoyancy?

Wider objects let them float, even if they are heavy

The Object's Shape

Larger objects displace more water, so they are more buoyant. Think balloon and small rock!

The Object’s volume

A ping pong ball VS a golf ball

The object’s weight

Salt water is denser than freshwater. Special: the Dead Sea!

The fluid’s density

Every object is buoyed upwards by a force equal to the weight of the fluid the object displaces

Experiment time! (Demo)

Playdough bowl

Playdough ball

VS

Which will float more?

Experiment time! (Demo)

Unpeeled Orange

Peeled Orange

VS

Which will float more?

Stability

02

So you don’t capsize during a race (that would be bad)

Paper cone demo!

Match the paper cone to the correct equilibrium!

Stable Equilibrium

Neutral Equilibrium

Unstable Equilibrium

Match the paper cone to the correct equilibrium!

Unstable Equilibrium

Stable Equilibrium

Neutral Equilibrium

What affects stability?

Which is easier to topple?

What affects stability?

Wider base, more stable

Lower centre of gravity, more stable

Tilt and recovery

Real-life application: the keel

• When the Boat Leans: The wind pushes the sails, causing the boat to tilt
• The Keel's Job: The heavy keel acts like a counterweight. When the boat leans, the weight pulls the bottom of the boat back down
• Righting Moment in Action: The farther the boat tilts, the harder the keel works to pull it back upright

Break!

Practical! (30 min)

03

Materials:

• Playdough
• Plastic cups
• Plastic bottles

Make your own boat!

Ending Video!

Thanks!

https://tinyurl.com/SportsxSTEMFeedback

Please keep this slide for attribution

CREDITS: This presentation template was created by Slidesgo, including icons by Flaticon, infographics & images by Freepik.

Icons resources

Alternative resources

Photos

• Marine toys on sandy beach
• Beach concept with little sailing boat
• Marine composition with small sailing boat
• Top view sailing boat with starfish concept

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Vectors

• Decorative budget with sailor items in flag design
• Marine elements with anchor, lighthouse and seagull

Resources

Photos

• Sailing boat decoration
• Top view summer accessories with copy space
• Shell background with copyspace
• Marine composition with sailing boat

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Icon pack

• Sailing

Vectors

• Collection of lovely marine wedding label
• Anchor background in ocean

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