INPUT ARTICLE: Article: The ultimate size of your aquarium will depend on a number of important factors, such as the amount of space available in your home and the number and type of fish you’d like to keep.  The rule of thumb for determining proper aquarium size is to allocate 1 gallon (3.8 L) of water per 1 inch (2.5 cm) of maximum length for each fish. Make sure you’re also able to allocate enough space for accessories for the aquarium, such as filters, tubing, and cords. You can buy acrylic from a local plastic shop, or purchase it from an online retailer if need be.  For aquariums, most manufacturers recommend using Cell Cast acrylic sheet.  Many plastic shops will cut the acrylic for you for free if you tell them the dimensions you need the pieces to be. Consider going this route to save yourself time and energy. The thickness of the acrylic you’ll need to use will be directly dependent on the dimensions of the aquarium you’re building. For aquariums 1 foot (0.30 m) or less in height, use acrylic that is .25 inches (0.64 cm) thick. For every additional 6 inches (15 cm) in height, make the acrylic an additional .125 inches (0.32 cm) thicker.

SUMMARY: Calculate the right size of your aquarium to house your fish. Buy enough acrylic sheets to meet the dimensions of your aquarium. Choose acrylic that’s thick enough based on the aquarium's height.

In one sentence, describe what the following article is about: Since they’re sold as craft supplies, most store-bought wood letters can be painted right away. However, rough or hand-made blocks may need a little touch-up first. Use a small piece of fine, 150-grit sandpaper to make sure the surface is smooth. Rub your sandpaper back and forth in short, gentle motions, staying parallel with the grain of the wood. The grain of the wood is the direction naturally traveled by the lines on your block. the wood. Before using acrylic or watercolor paints on a letter, use primer to make sure the wood is a solid color. With a small brush, apply a layer of white or grey primer to the wood. Let it dry for 1 hour and, if necessary, apply more coats until you have a uniform, single-colored block. After your final coat of primer, let the wood dry for 3 hours before applying paint.  If you’re using dark paint, like black, navy blue, or forest green, apply grey primer. If you’re using light paint, like baby or pastel colors, apply white primer. Acrylic paint provides an easy way to decorate wood that leaves room for hundreds of creative design ideas. To apply it, use a small brush to simply rub your paint onto the block. Let this layer dry for about 20 to 30 minutes before continuing. When you have a design you’re happy with, wash your brush and use it to apply 1 to 2 coats of matte, gloss, or satin sealer.  Acrylic paints are perfect for small patterns like polka-dots, zig-zags, and swirls. Try painting objects based on what the letters will spell out, like silverware over ‘Dining Room.’ Watercolors bridge the gap between acrylics and wood stains because they have both the color variety of paint and the soft, dyed look of stains. Prepare a set of watercolors in whatever shades you like, using a brush to mix the paint with water. Now, just paint. If you’re working with layers, leave 30 minutes to dry between each. When it’s done, let your wood dry overnight. If you’re covering whole letters, try placing your watercolors in bowls or cups and dipping the wood inside to dye it. To enhance the natural beauty of your letters and keep their wooden look, try staining. Use a brush to apply a layer of pre-stain wood conditioner to the surface of a letter, serving as a substitute for primer. Let it dry for about 10 minutes, then apply one layer of wood finish or wood stain. When the letter has turned a color you like, use a rag to wipe off any extra liquid and apply a coat of clear finish for protection.
Summary: Sand the wood. Prime Paint with acrylics. Paint with watercolors. Stain the wood.

While this is not necessarily ‘playing’, it is a great way to spend quality time with your gecko. Let your gecko get comfortable by sitting in its favorite warm spot on your body, and then settle in to watch a movie. Some leopard gecko owners have noticed that their geckos stare at the screen. Others will just fall asleep in a warm spot. Make sure the sound is not too loud though as it can startle and stress your gecko.
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One-sentence summary -- Watch a movie with your gecko.

Q: "Preview" is a default picture-viewing app; the icon resembles a couple of photos with a circular viewing glass on top of them. If Preview isn't your default PDF-viewing app, you'll need to click and drag your PDF over to the Preview icon and drop it there to open it in Preview. This option is to the right of the "Preview" text.  The Format option won't display obscure file formats by default; holding down the Option key when clicking Format bypasses this tendency and gives you the option of saving as a GIF. The "Option" key is nestled between Control and ⌘ Command at the bottom of your keyboard. You can also rename your file and choose a save destination from here. You have successfully converted your PDF to GIF format!
A: Double-click your target PDF to open it in "Preview". Click "File" in the toolbar at the top of the screen. Click the "Export" option. Hold down the "Option" key and click the "Format" field. Click the "GIF" option to save as a GIF. Click "Save" to save your screenshot.

INPUT ARTICLE: Article: Studies show that eating dark chocolate can help make your period easier to deal with. Eat a piece of chocolate to boost your mood between classes or for a burst of energy when you’re just feeling “blah.” If you don’t like dark chocolate, add a package of mints, which can help to soothe mild cramps and stomach pain. Ibuprofen and naproxen are helpful medications that can temporarily relieve cramps. Check your school’s policy before purchasing the medication. Look for a small package to fit in your bag, and only include it if you’re allowed to take them to school.  Some schools don’t let students carry medicine with them. However, you can talk to your school nurse and have a parent drop off a bottle of ibuprofen or naproxen in the office in case you need it to handle cramps or a headache. If you have cramps, ask to visit the nurse, and they will give you the right dose. You can find small containers of medication at most grocery stores and pharmacies. In some bathrooms, you might not be able to wash your hands after changing your pad or tampon. In that case, use a drop of hand sanitizer to ensure that your hands are clean and free of germs.  Be sure to seal the bottle of hand sanitizer tightly when you put it back in the bag to prevent it from spilling on the rest of the items. If you don’t want to include liquid hand sanitizer, look for sanitizing wipes in the supermarket. With wipes, there’s no risk for a leak or spill! Most women have a menstrual cycle that takes about 28-30 days, with their period lasting for 5-7 days. It can be helpful to have a calendar or notepad on hand to mark the first and last day of your period, and to check that it's coming every month. If you notice that you don't get a monthly period or have your period for more than 7 days at a time after the first 5-6 months, talk to your doctor about possible causes for this. It can take some time for your period to become regular, so be patient and try not to worry!

SUMMARY:
Include a piece of dark chocolate. Add a small package of ibuprofen or naproxen if you're allowed. Put a travel-sized container of hand sanitizer in the bag. Consider including a pocket calendar if you want to track your period.