What Causes Ocean Tides

Lab Brief #10

🎯 Your mission

Understand the idea. Then look for it everywhere.

⚡ The twist

The slowest changes are the biggest ones.

What you'll learn

Tides are the daily rise and fall of ocean water caused mainly by the Moon's gravity pulling on Earth. Most coasts experience two high tides and two low tides each day as Earth rotates.

Key words

water cycle
The way water moves from clouds to rain to rivers and back.

Make a hypothesis first

Predict: which will erode faster?

Say your guess out loud — then find out if you were right.

Step 1 of 4 · Read

Look at the vocabulary words and write a definition for each in your own words.

Step 2 of 4 · Do

Build a working model of a volcano using baking soda and vinegar. Observe the eruption and explain what causes real volcanic eruptions.

Step 3 of 4 · Observe

Look for patterns in your observations.

Step 4 of 4 · Record

Make a graph or chart showing your results.

Question 1 of 3

What causes ocean tides?

How sure are you?😐 maybe

Question 2 of 3

What causes wind?

How sure are you?😐 maybe

Question 3 of 3

What causes earthquakes?

How sure are you?😐 maybe

Mind = blown

🪨 Every grain of sand on every beach used to be a mountain.

Nice work!

You got 0 of 3 right.

Next: How Deposition Builds Land All lessons

🎯

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✨ More to explore

🌍 Where you see this in real life: This is shaping the ground you walk on, slowly, every single day.

🏆 Stretch challenge (try it this week): Find a rock outside and try to guess how old it is.

👨‍👩‍👧 For the dinner table: “What's the slowest change you can think of?”

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What Causes Ocean Tides

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