times to create nine new layers. 2. Name the layers Bubble2, Bubble3, Bubble4, and so on. 3. In the Timeline, click frame 1 in the Bubble layer, and then press the Shift key and click frame 20 to select frames 1-20. [View full size image] 4. Press Alt (Windows) or Option (Mac OS) as you drag the layer to one of the new layers above it, shifted slightly so that the first frame is a few frames further down the Timeline. [View full size image] 5. Copy the same frames to each layer, so that the starting keyframe for each layer is at a different position, from frame 1 to frame 15. [View full size image] 6. Select the first keyframe in the Bubble2 layer, press Ctrl+A (Windows) or Command+A (Mac OS) to select the bubble on that layer, and then drag the selected bubble to a different position in the glass. 7. Select the last keyframe in the layer, press Ctrl+A (Windows) or Command+A (Mac OS), and move the final bubble to a position above its new starting point, so that the bubble travels straight up in the glass. 8. Repeat steps 5-7 for the remaining bubble layers, so that each bubble begins in a different position in the glass and ends in a position directly above its starting position. To see each bubble's path more clearly, hide all the bubble layers except the one you're working with. [View full size image] 9. To preview the animation, choose Control > Test Movie. The fizzy drink is now bubbly! Working with Lines The Line tool draws straight lines, which you can combine to create new objects. To add some sparkle to the drink, you'll create popping fizz shapes above the glass. Matching the Color of an Existing Object The fizz should match the drink color, so you'll set the stroke color of the initial ovals to match the darkest shade in the drink. 1. Select the Bubble10 layer (the top layer) in the Timeline. 2. Choose Insert > Timeline > Layer, and name the layer Fizz. 3. Select frame 1 in the Fizz layer. 4. Select the Oval tool. 5. In the Property inspector, click the Stroke Color box, and then use the Color Picker's eyedropper to click on a dark area of the drink. 6. Set the Stroke Height to 3 and the Fill Color to none ( ). 7. Draw a small circle above the drink.