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Transcript of SCIENCE EXPERIMENT
My aim is to observe which liquid or all of the three liquids milk, water and vinegar will cause a volcano like eruption when added to bicarb soda.
If you add water or milk to the bicarb soda there will be no chemical reaction like there would be if you add vinegar because there are no chemicals in the milk and water like there are in the vinegar.
DESIGN A FAIR TEST
WHAT TO CHANGE
the liquid we add to each container
WHAT TO MEASURE
how fast the eruption is
the size of the volcano's and size of their holes to make sure they're all even
WHAT TO STAY THE SAME
the size of the volcano's and their holes
the amount of the ingredients
STEP 1: Get your modeling clay and make 3 volcanos out of it make sure their all the same size so it's a fair test.
STEP2 Once you've made your volcanos make sure there are no holes other wise all your ingredients will spill out of your volcanos.
STEP 3: Put your 3 volcanos in your containers.
STEP 4: Then put a tablespoon of bicarb soda in your volcanos three drops of green food dye
and three drops of washing detergent.
STEP5: Get ready to time and put half a cup (118.294ml) of your chosen liquid then once all the liquids out of the volcano press stop on the timer and repeat with your two other liquids
INGREDIENTS & EQUIPMENT
The ingredients for my experiment are: water, milk, vinegar, bicarb soda, washing detergent, green food dye.
The pieces of equipment needed for my experiment is: a table spoon, a measuring cup that holds half a cup, a stop watch to see how fast it takes for the volcano to erupt, 3 containers to put the volcanos in and modeling clay to make your volcanos.
by James Heffernan
BEFORE: transparent, liquid, strong smell, watery.
CAUSE OF CHANGE