by BlastRoom
Practice tracing Scratch scripts and choosing blocks, events, and stage elements.
#computer_science

40 questions
One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.

The class blasts through walls together.
Bid on mystery lots. Most money wins.
Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
A sprite starts at x = 0, y = 0, facing right. Its script is: when green flag clicked; move 40 steps; turn 90 degrees counterclockwise; move 20 steps. Where does the sprite finish?
A sprite starts at x = -50, y = 20, facing up. Its script is: when green flag clicked; move 30 steps; turn 90 degrees clockwise; move 15 steps. Where does the sprite finish?
A sprite starts at x = 60, y = -40, facing left. Its script is: when green flag clicked; move 25 steps; turn 90 degrees counterclockwise; move 10 steps. Where does the sprite finish?
A sprite starts at x = 10, y = 10, facing down. Its script is: when green flag clicked; move 40 steps; turn 90 degrees clockwise; move 20 steps. Where does the sprite finish?
A sprite starts at x = -70, y = -30, facing up. Its script is: when green flag clicked; turn 90 degrees counterclockwise; move 35 steps; turn 90 degrees clockwise; move 20 steps. Where does the sprite finish?
A sprite starts at x = 100, y = 50, facing right. Its script is: when green flag clicked; turn 180 degrees clockwise; move 30 steps; turn 90 degrees counterclockwise; move 10 steps. Where does the sprite finish?
A sprite starts at x = 0, y = 80, facing down. Its script is: when green flag clicked; move 25 steps; turn 90 degrees counterclockwise; move 60 steps. Where does the sprite finish?
A sprite starts at x = -90, y = 60, facing right. Its script is: when green flag clicked; move 10 steps; turn 90 degrees clockwise; move 30 steps; turn 90 degrees clockwise; move 20 steps. Where does the sprite finish?
A sprite starts at x = 40, y = -70, facing up. Its script is: when green flag clicked; turn 90 degrees counterclockwise; move 15 steps; turn 90 degrees counterclockwise; move 25 steps. Where does the sprite finish?
A sprite starts at x = -20, y = -20, facing left. Its script is: when green flag clicked; turn 90 degrees clockwise; move 40 steps; turn 90 degrees clockwise; move 50 steps. Where does the sprite finish?
A sprite needs to move smoothly from its current location to x = 200, y = 0 over one second. Which block should be used?
A sprite facing up is at x = 35 and should move 12 steps farther right without changing its y position. Which block does that?
A sprite should appear at the exact center of the stage when a game begins. Which block sets that location?
A sprite should face the mouse pointer before moving toward it. Which block should come first?
A character should show a speech bubble that says "Welcome!" for two seconds. Which block produces that effect?
A sprite should keep moving 5 steps until the red stop sign is clicked. Which control block should contain the move block?
A cat sprite has two walking costumes and should switch to the next one once. Which block changes its appearance?
A game needs every sprite to receive a message named start-race at the same time. Which block sends that message?
Sprite A's script is: when green flag clicked; wait 2 seconds; broadcast begin. Sprite B has a hat block followed by move 20 steps. Which hat block makes Sprite B move when Sprite A sends its message?
A sprite should say "Ouch!" only when a player clicks that sprite. Which hat block starts the script at that moment?
A game should start a jump script when the player presses the space bar. Which hat block is needed?
A project changes its backdrop to one named Level 2. Another sprite should immediately begin its level script. Which hat block should that sprite use?
A sprite should begin playing a sound when the microphone detects a loud noise. Which hat block can start that script?
A timer game should show "Time is up" as soon as its timer becomes greater than 30. Which hat block can start that script?
Sprite A broadcasts next-level after a player reaches a goal. Sprite B should change costumes only after that broadcast. Which hat block starts Sprite B's script?
Scratch groups blocks into color-coded categories. Which category contains the block "move 10 steps"?
Which Scratch category contains the block "say Hello! for 2 seconds"?
Where in the Scratch block palette would a student find the block "repeat 10"?
The block "broadcast message1" belongs to which Scratch category?
Which category contains the block "if then else"?
In a Scratch project, a cat character moves, talks, and runs scripts. What is that character called?
What is the area where sprites perform and where the project is displayed called?
A project changes the scenery from a classroom to a space station. What is each stage background called?
A dancer sprite has one picture with its left foot forward and another with its right foot forward. What are these alternate pictures called?
What is the panel that organizes Scratch blocks into categories such as Motion, Looks, and Control called?
A sprite starts at x = -60, y = 0, facing right. Its script is: when green flag clicked; repeat 3 [ move 20 steps; turn 90 degrees clockwise ]. Where does it finish, and how far has it turned in total?
A sprite starts at x = 10, y = 10, facing right. Its script is: when green flag clicked; repeat 4 [ change x by 15; turn 30 degrees counterclockwise ]. What is its x position and total turn?
A sprite starts at x = -40, y = 30, facing up. Its script is: when green flag clicked; repeat 2 [ move 25 steps; turn 90 degrees clockwise ]. Where does it finish, and how far has it turned?
A sprite starts at x = 0, y = -50, facing right. Its script is: when green flag clicked; repeat 5 [ change y by 10; turn 20 degrees clockwise ]. What is its y position and total turn?
A sprite starts at x = 80, y = -20, facing left. Its script is: when green flag clicked; repeat 3 [ move 10 steps; turn 90 degrees counterclockwise ]. Where does it finish, and how far has it turned?
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
Same question on every screen. Fastest wins.

Pick a tile, answer, hit bonuses and steals.
Karel: Commands, Functions and Loops
25 questions