Project Ideas How do crystals grown from iodized salt compare to those grown with un iodized salt? Does temperature affect the germination of seeds? Does one brand of battery last longer than another? Will liquids other than water affect the growth of plants? Which freezes faster, hot or cold water? Does Miracle Gro really affect the rate at which plants grow? Do ants react different in the dark? Is our heartbeat affected by music? Do white candles burn faster than colored candles? Do different colors of light affect plants differently? Which type of gum holds flavor the longest? Which paper towel is most absorbent? How does the surface of an inclined plane affect how far and how fast an object rolls? How do temperature changes affect ants? Are all leaves on a tree different? Will bananas brown faster in the fridge or on the counter? Which brand of batteries last longest? How much salt does it take to float an egg? In what condition does mold form the quickest? Which fertilizer affects plant growth the most? Which brand of tape sticks the best? What type of glue is the strongest? Which brand of popcorn is the best? (most kernels popped) Which brand of gum does flavor last the longest? What types of materials keep hot liquids hot the longest? What effect do fans have on room temperature? Which brand of batteries last the longest? Can you keep cut flowers alive longer by putting them in something other than water? Which brand of paper towel absorbs the most liquid? Which diaper brand absorbs the most liquid? Does where you store bread affect its freshness? Does cheese last longer in or out of the refrigerator? How long can a plant survive without light or water? Can you tell the difference between soft drinks without using your sense of smell? Which drink cleans a penny best? How does soda instead of water affect plant growth? Does light bulb wattage affect water evaporation? What type of liquid will cause a penny, a nail, a paper clip and a sewing needle to rust the fastest? Which drink of yours will evaporate the fastest? Will it be your coke, your milk, your orange juice, or your water? Which is the best insulator of heat? Of cold? Is it tin foil or paper? Is it fabric or plastic? What kind of fabric absorbs the most water? Which freezer bag protects food the best? Will fruits and vegetables stay fresh longer if they are in or out of the refrigerator? Which brand of cereal has the most raisins? marshmallows? Where will ice melt the fastest?