Grade 8 Coding Worksheet: Space Exploration Mixed Practice

Space Mixed Practice

Grade 8 Coding Space Mixed Practice Advanced 30 Questions 9 Views

Classroom Worksheet

Grade 8 Coding Worksheet: Space Exploration Mixed Practice

Space Mixed Practice

Name____________________________

Date________________

Score______ / 30

Grade: Grade 8

Subject: Coding

Topic: Space

Time: 20 Minutes

Difficulty: Advanced

Questions: 30

Instructions:
Read each question carefully and answer in complete sentences or with code/pseudocode when asked. Show your thinking for problem-solving questions. Work from easier to more advanced questions as you move through the worksheet.

Skills Practiced:

Space
Coding
Critical Thinking
Problem Solving

1Question

What is a variable, and how could it be used in a space game to store a spaceship's fuel level?

2Question

Write a variable name for storing the name of a planet visited in a game.

3Question

Choose the best data type for a distance value such as 384400.0 kilometers from Earth to the Moon.

4Question

A rocket launches if the countdown reaches 0. Write a simple if statement in pseudocode to check this.

5Question

What does a loop do in coding? Give one space-related example.

6Question

Write pseudocode for a loop that counts down from 5 to 1 before launch.

7Question

A spaceship moves 3 units up every time a key is pressed. What type of input is this?

8Question

What is the purpose of an array or list in a space simulation?

9Question

Write a list of three planet names you might store in a game.

10Question

A program checks whether a planet is habitable. What is one condition it might test?

11Question

Explain the difference between a sprite and a background in a space game.

12Question

Write a boolean expression that checks whether a spaceship has enough fuel to travel.

13Question

What will this pseudocode do? if score > 100 then give bonus points

14Question

Create a function name for calculating the gravity effect on a planet.

15Question

Why is using a function helpful in a space program?

16Question

Write pseudocode for a function that adds 10 points when a meteor is collected.

17Question

A spaceship can move left, right, up, or down. What kind of control structure helps handle these choices?

18Question

Write a switch or if/else idea for handling the key pressed: left, right, up, or down.

19Question

What is debugging?

20Question

A rocket keeps crashing because the thrust value is too low. Name one variable you might inspect while debugging.

21Question

A game uses x and y coordinates for a satellite. If x increases, what direction does the satellite usually move on the screen?

22Question

Write a condition that checks if a satellite is within the visible screen area using x and y.

23Question

A space game has a score, fuel, and shield level. Which of these should decrease over time while the ship is traveling, and why?

24Question

Write pseudocode to spawn a new asteroid every 3 seconds.

25Question

What is an algorithm? Describe it using the steps for launching a rocket.

26Question

A program stores the positions of 5 planets. Why is a loop better than writing each position separately?

27Question

Write pseudocode to move a spaceship through a space station maze until it reaches the exit.

28Question

A rover sends data from Mars back to Earth. What is one way a programmer could represent this data in a program?

29Question

Design a simple game rule using an if statement: the player wins when all space crystals are collected and the ship reaches the base. Write the condition.

30Question

Write a short pseudocode plan for a space mission game that includes initialization, input, movement, collision checking, score update, and game over.

Answer Key

#	Answer
1	A variable is a named place to store data. In a space game, it could store the spaceship's fuel level so the program can change it as the ship moves.
2	planetName
3	Float or decimal number
4	if countdown == 0 then launch rocket
5	A loop repeats code. Example: repeating a star animation across the screen.
6	for count from 5 down to 1: display count
7	Keyboard input
8	It stores multiple related items, such as a list of planets, astronaut names, or collected minerals.
9	Example: [Mercury, Venus, Mars]
10	It might test for liquid water, a suitable temperature, or breathable atmosphere.
11	A sprite is a moving object such as a rocket or alien. A background is the scene behind it, such as stars or a planet surface.
12	fuel >= requiredFuel
13	It gives bonus points when the score is greater than 100.
14	calculateGravity
15	A function helps reuse code, organize the program, and avoid repeating the same steps.
16	function collectMeteor(): score = score + 10
17	Selection, such as if/else or switch/case.
18	if key == left move left, else if key == right move right, else if key == up move up, else if key == down move down
19	Debugging is finding and fixing errors in code.
20	thrust
21	Usually to the right.
22	x >= 0 and x <= screenWidth and y >= 0 and y <= screenHeight
23	Fuel should decrease over time because the ship uses fuel while traveling.
24	Every 3 seconds: create asteroid
25	An algorithm is a step-by-step set of instructions. For a rocket: check fuel, start engines, count down, and launch.
26	A loop is shorter, easier to update, and reduces repeated code.
27	while not at exit: move according to controls
28	As a message, text string, number readings, or a data object with fields like temperature and location.
29	if crystalsCollected == totalCrystals and atBase then win
30	set score, fuel, and position; read input; move ship; check for collisions; update score and fuel; if health is 0 or mission complete then game over