Have you had a block you want to delete? Or one you want to restore after deletion? Now you will find out how!
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- #2020
- 01 Jul 2022
To delete a block we have two options:
- With the Del button.
- By moving the block in the palette to the side.
To delete a block with the Del or Delete button, we need to click on it and press the button on the keyboard. This button will always work on the last block you clicked on.
To delete a block with a move, we need to grab it and move it back to the side in the palette, no matter where. Be careful! When we drag a block that has other blocks below it, we also drag all the blocks below it and risk deleting a large part of our program.
Another way to delete just one block that is in the middle of several is to move it along with the blocks below it, then grab the blocks below it and return them to the original program. Now we have isolated the block we want to delete and we can move it to the side in the palette. We can also use this trick if we want to just move a block instead of deleting it and it looks like this:
Sometimes it happens that we delete a large part of our program without wanting to or move it and don't remember how it was originally. The tool that fixes such situations is Ctrl+Z, also called "Undo". If you need to undo something, click the Ctrl button and then Z. This undoes an action we did. Pressing it again returns a second action and we can go on like this probably longer than we ever need to.
Courses and lessons with this Tutorial
This Tutorial is used in the following courses and lessons
Robotics with LEGO SPIKE Prime - Level A1
The first level of the LEGO robotics curriculum for second, third, and fourth-grade students.
A "space adventure", but with robots. Different robot structures are built in this level. The motors are controlled so that the robots perform precise movements around the "earth", "moon" and "sun". We overcome various obstacles after bumping into them thanks to the force sensor. We learn interesting facts about the solar system and space vehicles.
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Lesson 2 - Tidal waves
Introduction
Today we will learn about an interesting effect caused by the Moon: tidal waves. You may know that massive bodies have an attractive force - gravity. The moon's gravity pulls the water in the oceans and so the sea level along the ocean coasts temporarily rises or falls. The increased level is called high tide, and the decreased level is called low tide.
How much do you think the difference between high and low tide can be in the world?
The distance between high tide and low tide sea levels can reach up to 16 meters in the Bay of Fundy in Canada, and the lowest differences are in the Mediterranean, Baltic, and Black Seas, where they are only a few centimeters. We will use 50 cm as an average value that is convenient for the task.
- 10
- 5
- 12
- 3d_rotation 1