Programming with Scratch - Variables

Which block is used to declare a variable in Scratch?

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Which block is used to assign a variable in Scratch?

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What is the purpose of the change [variable] by [value] block in Scratch is to

• set a variable to a specific value.

• increase or decrease the value of a variable dynamically.

• display the value of a variable on the screen.

• to delete a variable.

Answer explanation

It increases or decreases the value of a variable dynamically.

Which block is used to display the variable [year] on the screen?

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Which of the following sequence is an example of the correct use of the [age] variable in Scratch?

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When the hide variable [my variable] block is used

• the variable is deleted.

• the variable's value is reset to 0.

• the variable is no longer visible on the stage.

• the variable stops updating its value.

Answer explanation

When the hide variable [my variable] block is used, the variable is no longer visible on the stage.

The error in this sequence relates to

• assigning the name "Joanna" to the wrong variable in the first block.

• using an incorrect variable in the third block.

• assigning the name "Joanna" to the wrong variable in the third block.

• all of the above.

Answer explanation

The error in this sequence relates to assigning the name 'Joanna' to the wrong variable in the first block.

What would this sequence output?

• What's your age?

• That means in 20 years you will be 10.

• 20 years

• That means in 10 years you will be 20.

Answer explanation

The correct choice is 'That means in 10 years you will be 20.' as it accurately reflects the output of the sequence.

What is the result of this sequence of blocks?

• Hmm ... 2

• 3

• Your score is 3

• 2

Answer explanation

The correct result of the sequence of blocks is 3, as indicated in the answer choices. Therefore, the correct answer is 3.

What is the output of this sequence?

• Your final score is 1

• Your final score is -1

• 1

• -1

Answer explanation

The correct answer is 'Your final score is 1' because the sequence results in a final score of 1 based on the given conditions.