Electrolytes Experiment Hypothesis
Hypothesis
If we test the amount of electrolytes in an energy drink and orange juice, then orange juice will have more electrolytes than an energy drink.
Variables
Independent Variable- the two different drinks, orange juice and an energy drink
Dependent Variable- the amount of electrolytes in each to determine whether or not one has more than another
Controlled Variable- same multimeter, same brand and type of alligator clips leads, same gauge, length, and brand of copper wiring, same brand and type of V battery and 9 V battery clip, same 1 kΩ resistor, same type of bowls, (meaning it’s made out of the same material), same type and brand of masking tape, the same amount and brand of distilled water, the same amount and brand of tap water, …show more content…
Use a different one for each liquid you test or use one bowl repeatedly, being careful to wash and wipe it thoroughly between liquids.
~Masking tape or other materials for creating labels
~Permanent pen or marker
~Room temperature distilled water (dH2O)
~Room Temperature tap water
~Room Temperature energy drink, (of your choice)
~Room Temperature orange juice, (of your choice)
~Paper towels
Procedure
Making a Simple Conductance Sensor
Cut a 5 cm (2 inch) piece from the drinking straw.
Cut two pieces of copper wire, each about 12 cm (5 inches) long.
Wrap the two pieces of wire around each end of the straw, leaving 5 cm tails of wire, as shown in Figure 1.
Make sure you wrap the wires snugly around the straw so they do not slide back and …show more content…
This is easy to do with the multimeter probes since the metal tips are rather large, but can be difficult with the battery snap connector since the exposed metal parts at the ends of the wires are fairly small. If you connect to insulation instead of the metal, your circuit will not work.
Your work area can get messy with all the wires. You can use twist ties to bundle them up and keep your work area neater, as shown in Figure 4. This also helps you avoid short circuits by making sure the metal parts do not bump into each other.
Connect the snap connector to the 9 V battery.
Use the red alligator clip to connect the red multimeter probe to the red wire from the battery snap connector.
Use the black alligator clip to connect the black multimeter probe to one wire of the conductance sensor.
Use the green alligator clip to connect the black wire from the battery snap connector to the other wire of the conductance sensor.
Figure 3. A schematic of how you should build the circuit.
Figure 4. A picture of the completed conductance measuring circuit.
Double-check your connections to make sure they match those shown in Figures 3 and 4 before you
If we test the amount of electrolytes in an energy drink and orange juice, then orange juice will have more electrolytes than an energy drink.
Variables
Independent Variable- the two different drinks, orange juice and an energy drink
Dependent Variable- the amount of electrolytes in each to determine whether or not one has more than another
Controlled Variable- same multimeter, same brand and type of alligator clips leads, same gauge, length, and brand of copper wiring, same brand and type of V battery and 9 V battery clip, same 1 kΩ resistor, same type of bowls, (meaning it’s made out of the same material), same type and brand of masking tape, the same amount and brand of distilled water, the same amount and brand of tap water, …show more content…
Use a different one for each liquid you test or use one bowl repeatedly, being careful to wash and wipe it thoroughly between liquids.
~Masking tape or other materials for creating labels
~Permanent pen or marker
~Room temperature distilled water (dH2O)
~Room Temperature tap water
~Room Temperature energy drink, (of your choice)
~Room Temperature orange juice, (of your choice)
~Paper towels
Procedure
Making a Simple Conductance Sensor
Cut a 5 cm (2 inch) piece from the drinking straw.
Cut two pieces of copper wire, each about 12 cm (5 inches) long.
Wrap the two pieces of wire around each end of the straw, leaving 5 cm tails of wire, as shown in Figure 1.
Make sure you wrap the wires snugly around the straw so they do not slide back and …show more content…
This is easy to do with the multimeter probes since the metal tips are rather large, but can be difficult with the battery snap connector since the exposed metal parts at the ends of the wires are fairly small. If you connect to insulation instead of the metal, your circuit will not work.
Your work area can get messy with all the wires. You can use twist ties to bundle them up and keep your work area neater, as shown in Figure 4. This also helps you avoid short circuits by making sure the metal parts do not bump into each other.
Connect the snap connector to the 9 V battery.
Use the red alligator clip to connect the red multimeter probe to the red wire from the battery snap connector.
Use the black alligator clip to connect the black multimeter probe to one wire of the conductance sensor.
Use the green alligator clip to connect the black wire from the battery snap connector to the other wire of the conductance sensor.
Figure 3. A schematic of how you should build the circuit.
Figure 4. A picture of the completed conductance measuring circuit.
Double-check your connections to make sure they match those shown in Figures 3 and 4 before you