For Each Student Team

• Microscope
  
• 2 Microscope slides
  
• 2 Cover slips
  
• 1-cm piece of onion, or, small section of an Elodea leaf (or other aquarium plant)
  
• Toothpicks
  
• Bottle of Methylene Blue
  
• Eyedropper
  
• Water
  
• Tweezers
  
• Latex Gloves
  
• Petri dish with soap bubble solution (optional)
  
• Straw (optional)
  
• Three test tubes
  
• Test tube rack
  
• tweezers
  
• Paper towels
  
• Latex gloves
• Safety glasses
• One piece of brown paper bag, approximately 5 cm on a side
  
• Lugol's iodine solution in dropper bottles
  
• Biuret's reagent in dropper bottles
  
• One of the following Testing Food items:
  
  • shelled peanuts
    
  • potato cubes
    
  • egg white
    
  • banana
  • corn oil
    
  • coral pieces
  • cheese
  • rice grains and water solution
    
  • sand (clean, no organic matter present)
    
  • water
    
• One team will need:
  • 1 heaping teaspoon onion
  • 20 ml salt/soap solution
  • 5 ml enzyme solution
    
  • 25 ml cold alcohol (95% ethanol, if available)
  • 100-ml beaker
  • 1 25-ml graduated cylinder
  • 1 large test tube
  • 1 wooden splint
  • microscope slide or small portion cup
• All other teams will need:
  • 3 50-ml capped test tubes or equivalent
    
  • 3 plastic teaspoons
    
  • 3 wooden splints
    
• Two feet of string or yarn
• Paper clips
• 1/2 sheet of paper
• Tape
• Marking pens
• DNA and RNA pieces, as prepared by students during Activity 2.3
• Scissors
• Glue
• Butcher paper, 2 ft. x 2 ft.
• Bag with 10 Hershey's kisses and 15 malt balls, gumballs, or other round candy
• 3" x 3" paper square
• Box or cup with lid containing 100 pennies
• Hand lens
• Winogradsky column
• Straight edge