**Course Title:** Introduction to Programming with Scratch **Section Title:** Loops and Conditionals **Topic:** Build a project with loops and conditionals: Animate a sprite and make it react to user inputs.(Lab topic) **Objective:** By the end of this lab, you will be able to apply loops and conditionals to create an interactive project that animates a sprite and reacts to user inputs. **Materials:** * A computer with internet access * A Scratch account (if you haven't already, sign up for a free account on the Scratch website: [https://scratch.mit.edu/](https://scratch.mit.edu/)) **Project Overview:** In this lab, you will create a project that animates a sprite and makes it react to user inputs using loops and conditionals. The project will consist of a sprite that bounces around the screen and changes its appearance or behavior in response to user inputs, such as keyboard or mouse clicks. **Step 1: Create a New Project and Add a Sprite** 1. Log in to your Scratch account and create a new project by clicking on the "Create" button. 2. Choose a sprite from the library or create your own by clicking on the "Paint" button. 3. Name your sprite by clicking on the "Sprite" tab and entering a name in the "Name" field. **Step 2: Animate the Sprite Using Loops** 1. Create a new script by clicking on the "Scripts" tab and then clicking on the "Make a Script" button. 2. Add a "forever" block to the script by dragging it from the "Control" category and dropping it onto the script area. 3. Add a "move 10 steps" block inside the "forever" block by dragging it from the "Motion" category and dropping it onto the script area. 4. Add a "turn 10 degrees" block inside the "forever" block by dragging it from the "Motion" category and dropping it onto the script area. **Step 3: Make the Sprite React to User Inputs** 1. Create a new script by clicking on the "Scripts" tab and then clicking on the "Make a Script" button. 2. Add a "when key pressed" block by dragging it from the "Events" category and dropping it onto the script area. 3. Add a "if" block by dragging it from the "Control" category and dropping it onto the script area. 4. Add a "change color by 25" block inside the "if" block by dragging it from the "Looks" category and dropping it onto the script area. 5. Repeat steps 2-4 for different user inputs, such as mouse clicks or keyboard keys. **Step 4: Test and Refine Your Project** 1. Test your project by clicking on the "Flag" button or pressing the "Space" key. 2. Observe how your sprite animates and reacts to user inputs. 3. Refine your project by adjusting the values in your script blocks or adding new scripts and conditions. **Key Concepts:** * Loops: Repeat and forever blocks are used to create animations and repetitive actions. * Conditionals: If and if-else blocks are used to make decisions based on user inputs or other conditions. * Events: Keyboard and mouse inputs are used to trigger scripts and create interactive behaviors. **Practical Takeaways:** * Use loops and conditionals to create interactive and dynamic behaviors in your projects. * Experiment with different user inputs and outputs to create engaging and immersive experiences. * Test and refine your projects to ensure that they work as intended. **Challenge:** * Create a new project that uses loops and conditionals to create a interactive game or simulation. * Share your project with a peer or mentor and ask for feedback on how to improve it. **What's Next:** In the next topic, we will explore the world of variables in Scratch and learn how to create and use them in our projects. Variables allow us to store and manipulate data in our projects, making them more interactive and dynamic. If you have any questions or need help with this lab, please leave a comment below.