A battery is something that stores energy. In lesson 2 my class made a battery out of a strip of zinc, a strip of copper, a piece of paper, a rubber band, a cup, and some copper sulfate solution. In a battery there is two electrodes and one electrolyte. In the battery we Built the zinc and copper was the electrodes and the copper sulfate solution was the electrolyte. In lesson 3 we used a D-Cell rechargible battery to power a mini light and an electrik battery. We timed the time each of the things were going for, the light went for 6:00mins and the motor went for like 11:00mins. In lesson 4 we changed the charging time of the D-Cell battery to find out how it effected the time a flashlight stays lit.
A.Yes, the light got light up, that means it was a battery.
Q.Describe what makes up a battery.
A.Two electrodes and one electrolyte.
Q.What do you conclude from your observations of the zinc-copper strips you placed in the copper sulfate solution?
A.They made up a battery.
Q.What happened to your light bulb after you removed the assembley from the solution? How Would you explain to some one what happened?
A.The battery kept the light lit for a cuple of minutes after I removed the battery from the solution. The battery ran out of "Charge".
Q.In the activities, you probably noticed that the bulb was not very bright. What could you do to make the bulb glow more brightly?
A.Get a bigger batery, make a bigger battery, or atach sevral batterys together.
Q.How was the battery (D-Cell) different after you attached it to the charging apperatus for 3:00mins? Support your anwser with evidence.
A.The charger Charged the battery so it had power to power the stuff.
Q.How can you explain your observation?
A.The battery powered the light and the motor after we charged it.
Q.What happened when you left the bulb connected to the battery? Why did this happen?
A.The light went out because the battery ran out of charge.
Q.What happened to the batterys energy when you connected it to the light bulb?
A.It got used up.
Q.What happened when you repeated your experament with the electric motor?
A.The motor was running for longer.
Q.From your observations, do you think the motor or the light needs more energy to operate? Give ressons for your anwser.
A.The light bulb, becausethe light bulb barly lit and it didn't last as long as the motor.
Q.On the basis of your experiences in lesson 2 and 3, write a description of a battery in your science note book.
A. A battery stores energy to power stuff.
Highpothisis-As the charging time increases the flashlight will stay lit lit for longer because the longer the charge the more power thr bsttery has to power the flashlight.
Q.Discuss with your lab partner any paterns you observe in data that come from class averages. For each trial, why is it better to use class instead of the from only one pair of students?
A.Because if you got bad data then thats bad but the class mostly gets good data.