function dispHH(){
var BigHH = new Array(100);
// CE 0-4 session 1, 5-9 are session 2, 10-14 are session 3, 15-19 are session 4, 20-24 are session 5
// FA 25-29 session 1, 30-34 are session 2, 35-39 are session 3, 40-44 are session 4, 45-49 are session 5
// FF 50-54 session 1, 55-59 are session 2, 60-64 are session 3, 65-69 are session 4, 70-74 are session 5
// PE 75-79 session 1, 80-84 are session 2, 85-89 are session 3, 90-94 are session 4, 95-99 are session 5
BigHH[0] = "Activity 1A: Swirling Colors If you leave the whole milk out of the refrigerator for at least an hour, the reaction between detergent and milk fats will be quicker and more dramatic. Plastic cereal bowls work well for this experiment, and can be washed and reused.
Activity 1B: Cleaning Up an Oil Spill Plastic plates give the children space to make a \"beach\" with the sand, as well as float their \"boats\", and they can be washed and reused.";
BigHH[1] = "0";
BigHH[2] = "Activity 1A: Swirling Colors Check restaurant supply companies for bulk quantities of plastic bowls, plates, measuring spoons, and plastic ware.
Activity 1B: Cleaning Up an Oil Spill ACS WonderNet, Past Issues, Soap and Detergent, If Mixing Is Urgent";
BigHH[5] = "Activity 2A: What’s the Strength? One facilitator suggested that sugar is better than salt for the tasting part of this activity. The children enjoyed tasting the sugary water, and their attitudes stayed more positive and focused.
Activity 2B: How Polluted Is It? The iodine should be colored -- if the color has been removed (de-colorized iodine), the color change in the experiment will not occur. Call pharmacies in advance as you may need to special order the colored variety.";
BigHH[6] = "0";
BigHH[7] = "0";
BigHH[8] = "0";
BigHH[9] = "0";
BigHH[10] = "Activity 3A: Making Gloop When making gloop allow the children two drops maximum of food coloring; otherwise they will often find that the mixture doesn't turn to gloop -- it stays too watery. Borax dissolves best in hot water. Mix in advance and cool, then stir just before using. Borax is often shelved in the bleach section of the grocery stores. Borax is not Borateem, which has additional ingredients and will not create gloop if used. The glue brand can be Elmer's or a generic brand, but it does need to be white \"school\" glue. The glue labeled \"washable\" does not work in this experiment.
Activity 3B: Polymers—How Can We Use Them? When mixing the gel polymer with water, swirl the cup to allow the gel to absorb the water. This works better than stirring with a spoon which breaks up the gel/water mixture too much.";
BigHH[11] = "For those of you who enjoyed making \"Gloop,\" there are lots of variations on this theme. One possibility is to try adding various substances to the glue before you mix in the borax solution. For example, try adding 1/2 teaspoon talcum powder or powdered chalk to the glue/water mixture, then add the borax solution. You might want to try having kids make Gloop both ways (with and without the added powder), then compare properties such as how well it bounces, stretches, picks up words from newspaper, etc.
Another possibility is to make a similar polymer using liquid starch rather than borax solution. Start out by mixing 1 Tablespoon white glue and 1 Tablespoon water. Add food coloring if you wish. As you stir the mixture, slowly add Purex brand Sta-Flo liquid starch a few drops at a time. Watch for changes in properties as you continue to slowly add the starch. Once the mixture becomes solid, you can knead it with your hands (coating your hands with starch will help to prevent the Gloop from sticking).";
BigHH[12] = "0";
BigHH[13] = "Activity 3A: Making Gloop ChemMatters, April, 1986 and October, 1999. American Chemical Society, Washington, DC. Wonder Science 14 (3), Fall, 1999. American Chemical Society, Washington, DC., Wonder Science 5 (8), December, 1991. American Chemical Society, Washington, DC. Wonder Science 2 (3), September, 1988. American Chemical Society, Washington, DC.";
BigHH[14] = "Activity 3A: Making Gloop Horta-Sorb Superabsorbents American Plastic Council: Hands on Plastics ACS WonderNet, Past Issues, Polymers, Goop to Go
Activity 4B: Water Treatment - Cleaning It Up It is important to mix the colored water according to the recipe given in the book. Though the resulting mixture is light in color, a more concentrated mixture will not filter out in the activated charcoal, and the resulting experiment will not show the effectiveness of the charcoal.";
BigHH[16] = "0";
BigHH[17] = "Activity 4B: Water Treatment - Cleaning It Up NASCO, 901 Janesville Avenue, P.O. Box 901, Fort Atkinson, WI 53538-0901 Tel: 1-800-558-9595 Internet: http://www.eNASCO.com Carries plastic funnels of various sizes and prices, as well as large assortment of supplies for science education. Restaurant supply stores often carry an assortment of plastic and metal funnels.";
BigHH[18] = "Involving Dissolving. LHS GEMS, University of California, Berkeley, CA. ";
BigHH[19] = "Activity 4A: What Dissolves and What Doesn’t ACS WonderNet, Past Issues, Solutions, Dissolving Sweet Solutions
Activity 4B: Water Treatment - Cleaning It Up USEPA Environmental Explorer's Club, Water";
BigHH[20] = "Activity 5A: Pink? Green? Or in Between? Washing soda is sold next to laundry detergents and is used as a detergent booster. Chemically it's quite different from baking soda, so you wouldn't want to substitute baking soda if you can't find washing soda. You could use other basic (alkaline) substances such as ammonia -- we chose washing soda because it's safer for kids to handle. A large selection of items to test makes this activity more exciting, especially if you have a wide selection of personal care items, which are surprisingly acidic.";
BigHH[21] = "0";
BigHH[22] = "Activity 5B: Forever Purple? Good, clear pictures of fish can be found in childrenÕs picture books borrowed from local library. You can color photocopy a picture and then laminate it for use in the Focus section. Sample sizes of personal care items are available in many grocery stores and pharmacies.";
BigHH[23] = "0";
BigHH[24] = "0";
BigHH[25] = "Activity 1A: Fuzzy Fibers If you don't have a washboard or marinating pan as mentioned in the publication, try placing the wool in the toe of a nylon hose or between two pieces of bubble wrap and rubbing with your hands. You might also place the wool in a ziplock plastic bag and rub back and forth with a rolling pin.";
BigHH[26] = "0";
BigHH[27] = "Activity 1A: Fuzzy Fibers Washboards can be found at these locations: Lehman's Non-Electric Catalog P.O. Box 41 Kedron, OH 44636 Phone: 330-857-5757 Internet: www.lehmans.com * For ITS kits we ordered \"Rub-a-Dub Mini Bright Tin\" Washboards
Activity 1B: Fantastic Feathers San Brenton P.O. Box 3976 Clarksville, TN 37043 Phone: 615-362-4396 (Turkey and Peacock Feathers)
Another good source of feathers is: The Wandering Bull Inc. 247 South Main Street Attleboro, MA 02703 Phone: 800-430-BULL Internet: www.wanderingbull.com * For ITS kits, we ordered guinea hen feathers, ring-neck pheasant tail feathers, T-flat body plumage and peacock tail feathers.";
BigHH[28] = "Activity 1B: Fantastic Feathers Super Science, March 1991. Scholastic Classroom Magazines, Jefferson City, MO.";
BigHH[29] = "Feather Industries - Why Down is Good";
BigHH[30] = "Activity 2B: Night Views It may be difficult to see the pupil size change if subjects have dark-colored eyes. It will be easier in full sunlight. In step 7, hold the flashlight at eye level and aim directly at the coffee cans.";
BigHH[31] = "0";
BigHH[32] = "0";
BigHH[33] = "Activity 2A: Light Up the Night Wonder Science 4 (8), December, 1990. American Chemical Society, Washington, DC.
Children's Television Workshop One Lincoln Plaza New York, NY 10023 March 1998 Page 2
Janice VanCleave Guide to the Best Science Fair Projects John Wiley and Sons, Inc. New York, NY 1997";
BigHH[34] = "0";
BigHH[35] = "Activity 3A: Keeping Cool Resealable snack bags are the perfect size to hold two ice cubes.";
BigHH[36] = "0";
BigHH[37] = "0";
BigHH[38] = "Activity 3A: Keeping Cool Wonder Science 8 (4), April, 1994. American Chemical Society, Washington, DC. ChemMatters 19 (4), December 2001, American Chemical Society, Washington, DC. ";
BigHH[39] = "Activity 3A: Keeping Cool Nature's Deep Freeze
Activity 2B: Core Comparisons Kitchen Science for Kids. 1995. Cornell University, Ithaca, NY.";
BigHH[59] = "0";
BigHH[60] = "Activity 3A: Drop by Drop The Scotchgard product mentioned in the publication is no longer available. The new waterbased aerosol Scotchgard Fabric & Upholstery Protector now on the market can be substituted.";
BigHH[61] = "Activity 3A: Drop by Drop Instead of the water-repellent finishes mentioned in the publication, try one made for tents or shoes.";
BigHH[62] = "0";
BigHH[63] = "Activity 3A: Drop by Drop Championship Material, 1987. Cornell University, Textiles & Apparel Department, MVR 239, Ithaca, NY. Fabric/Flight Connection, 1997. Cornell University, Ithaca, NY. Wonder Science 6 (2), February, 1992. American Chemical Society, Washington, DC.
Activity 3B: Water Attraction Wonder Science 7 (1), Januray, 1993. American Chemical Society, Washington, DC.";
BigHH[64] = "0";
BigHH[65] = "0";
BigHH[66] = "0";
BigHH[67] = "0";
BigHH[68] = "Activity 4A: Color or Not Of Cabbages and Chemistry, LHS Gems, University of California, Berkeley, CA. Wonder Science 2 (1), February, 1988. American Chemical Society, Washington, DC.
Activity 4B: Color Changers Chemical Demonstrations: A Sourcebook for Teachers, Volume 2. 1988. American Chemical Society, Washington, DC. ChemMatters, April, 1983. American Chemical Society, Washington, DC.";
BigHH[69] = "Activity 4B: Color Changers ACS WonderNet, Past Issues, Chemistry & Color, It's a Natural ACS WonderNet, Past Issues, Chemical Reactions, Lose Indicator Blues";
BigHH[70] = "Activity 5A: Stain Away Be aware that detergent manufacturers change the ingredients frequently. Read labels carefully to make certain that you are comparing detergents with different ingredients. Keep labels to share with children.";
BigHH[71] = "0";
BigHH[72] = "0";
BigHH[73] = "Activity 5A: Stain Away ChemMatters, April, 1985. American Chemical Society, Washington, DC. Wonder Science 6 (7), November, 1992. American Chemical Society, Washington, DC.";
BigHH[74] = "Activity 5A: Stain Away ACS WonderNet, Past Issues, Soap and Detergent, Release Grease";
BigHH[75] = "Activity 1A: Lock It Up Many varieties of grapefruits are bred to not have seeds. Inquire with the produce manager or check one grapefruit before buying them for the activity. I recently found pre-cracked coconuts in the grocery store and then all you need to do is drain milk and use the claw end of a hammer to open the seed. If the coconut is not pre-cracked it is best to make two puncture holes in the eyes of the coconut to drain liquid.
Activity 1B: Don’t Break That Egg! You might want to limit the amount of material students can use to protect the egg (or at least limit the amount of bubble wrap if you use it at all). It is great to have a variety of protecting materials so I put different materials in bags and let the students pick the bag they want to use. You might want to use hard-boiled eggs and eat them afterwards to save on food waste. Make sure you keep them refrigerated until activity.";
BigHH[76] = "0";
BigHH[77] = "0";
BigHH[78] = "0";
BigHH[79] = "Activity 1A: Lock It Up Cornell Youth Horticulture ";
BigHH[80] = "Activity 2A: Pulling Up Color Food coloring in a gel form, made by Betty Crocker, is less messy and easier to store than traditional liquid food colors. Four colors of gel come in tubes and must be added to warm water.
Make diagonal base cuts since they expose more area for water uptake. Students can cut up the celery stalk into shorter pieces and put each piece into the colored water. From my experience younger daisies (the flowers are just beginning to open) absorb the color faster; cut stems short so the color makes it to the petals.
Activity 2B: Mapping It Out Use the flatter outside leaves of the cabbage for leaf rubbings or better still use kale or collard greens since they are flatter. Peel the paper off the crayons and use the crayon horizontally to achieve a clear rubbing.
If you can't find a local map, you can search the internet for maps of your area and print a specific location.";
BigHH[81] = "0";
BigHH[82] = "0";
BigHH[83] = "0";
BigHH[84] = "Activity 2A: Pulling Up Color ACS WonderNet, Past Issues, Plant Science, Totally Tubular";
BigHH[85] = "Activity 3A: Here Comes the Sun I could not find gooseneck desk lamps approved for 100-watt bulbs. Instead buy clip-on portable lamps with a reflective shield from the hardware store. You might want to designate one person from each group to take the thermometer readings and the person should have their eyes at the same level as the thermometer. Also you can count seconds out loud to keep children focused as they wait to take readings at 2 and 4 minutes.
We use probe thermometers with a large dial, which we purchased at a local grocery store. The large dial allows for easier reading of the temperature than using a liquid filled standard thermometer. At one point, we poked a small hole in the plastic bottle to allow the probe end of the thermometer to be inserted into the bottle and into the soil, and the dial was left on the outside, making it even easier to read.
Activity 3B: Hot and Cold, Dark and Light Use the same lights as 1A. The drawings look like 1/2 gallon milk containers but lunch-size milk cartons are what is needed.";
BigHH[86] = "0";
BigHH[87] = "0";
BigHH[88] = "0";
BigHH[89] = "0";
BigHH[90] = "Activity 4A: Strong Stems and Broad Leaves You might collect real leaves for the focus. You can ask what is different between the leaves and as well as the harder question, what is similar between the leaves? In step two you might want to have kids make two petioles so they each have a flattened and round petiole.
When doing the playdough activity, give each participant a can of playdough and assign them to be either \"forest\" or \"lawn\" (\"grassland\" or \"prairie\"). They can make their own creative contribution to the landscape, be it soil, plant, animal, hill, etc., just so we cover the bottom of the pan with enough playdough for the plants to be solidly embedded.
Activity 4B: Flat or Round Use safety glasses in focus activity to prevent a piece of pasta from flying into eyes. There are many uncontrolled variables in this activity so I never know what the results will be. This can lead to an interesting discussion on variables and how you could control them: are the masses of the two styles of pasta the same; do individual techniques influence the results; does the properties of the marshmallow change as it gets poked repeatedly etc.";
BigHH[91] = "0";
BigHH[92] = "0";
BigHH[93] = "Activity 4B: Flat or Round Wonder Science 13 (5), Spring, 1999. American Chemical Society, Washington, DC. Wonder Science 5 (2), February, 1991. American Chemical Society, Washington, DC.";
BigHH[94] = "0";
BigHH[95] = "Activity 5A: Hold It Together with Turf If you live in a cold part of the country, you can cut sod before the ground freezes and keep in a cold storage area.
We have successfully used toy wooden blocks, about 3Óx 3Óx Ó, for propping the sod and soil pans Ñ they are just the right size, are not damaged by water, and can be used again.
Activity 5B: Chocolate Mud Slides To save on paper and plastic waste, you can serve extra pudding in ice-cream cones. You might try covering the middle section with plastic wrap since it tends to get sprayed with more water then either of the two ends.
Popsicle sticks work well for the mudslide \"barriers\" and are easy to clean and re-use.";
BigHH[96] = "0";
BigHH[97] = "0";
BigHH[98] = "Activity 5B: Chocolate Mud Slides Wonder Science 13 (8), Spring, 1999. American Chemical Society, Washington, DC.";
BigHH[99] = "Activity 5B: Chocolate Mud Slides ACS WonderNet, Past Issues, Soil Science, Rain and Drain";
var subSession = new Array(20);
//these are the session names for the top of the page
subSession[0] = "Dispersion";
subSession[1] = "Chemical Concentrations";
subSession[2] = "Chemical Bonds and Physical Properties";
subSession[3] = "Dissolving";
subSession[4] = "Acids, Bases, and Buffers";
subSession[5] = "Microstructures";
subSession[6] = "Reflection of Light";
subSession[7] = "Heat Transfer";
subSession[8] = "Digestion";
subSession[9] = "Chemical Composition";
subSession[10] = "Physical and Chemical Components";
subSession[11] = "Structural Change";
subSession[12] = "Water Interactions";
subSession[13] = "Color";
subSession[14] = "Enzymes";
subSession[15] = "Protection";
subSession[16] = "Transportation";
subSession[17] = "Warming and Cooling";
subSession[18] = "Structure";
subSession[19] = "Erosion";
var title = document.HH.Title.selectedIndex; // 0,1,2,3
var sess = document.HH.Session.selectedIndex; // 0,1,2,3,4
var longstr = "";
var temp = "";
var titleName = document.HH.Title.options[title].text;
var sessionName = document.HH.Session.options[sess].text;
var sessionName2 = subSession[((title*5)+(sess))];
// display title,0 [element (title*25)+(sess*5)+0]
longstr += "