Participation

PARTICIPATION

TITLE: Circuit Puzzle

AIM: To determine the connections hidden in a circuit board.

WHAT I DID: Using the circuit tester given, I try to make the bulb light by attaching the ends of the wire to lettered points on the circuit board

WHAT I OBSERVED: When the aluminum foil was arranged in an order, I witness a relationship between the pairs that resulted in the bulb lighting. With different connecting pairs the lightbulb's response to the connection varied.

WHAT I INTERPRETED: I interpreted that all metals are good conductors of electricity however depending on the constants used would be the amount of electricity output, the same length of the conducting metal and the same voltage. Additionally that a conductor is made of different metals like aluminum, copper, and steel.

TITLE: Mystery Powder

AIM: To determine which two of four powders have been combined to form a mystery powder.

WHAT I DID: I placed equal amounts of the powders into the spotted tray using a spatula. I observed the different type of powders provided and recorded my observations of the properties of the powder from which I touch and saw. I combine vinegar with the four powders and to each solution of powder I added a piece of red and a piece of blue litmus to determine whether the powder was acidic or alkaline.

WHAT I OBSERVED: It was observed that Powder A had the smallest particles and varied in a smooth texture. Using the sense of smell, it was observed that Powder A had a sweet smell like that of baby powder. After stirring Solution A for a period of time, the particles only moderately dissolved to form a suspension. The colour of the litmus paper remained the same. Powder B had an analogous texture to powder A however the powder completely dissolved forming a solution when mixed with the liquids. The colour of the litmus paper also remained the same. Powder C, similarly appeared like that of powder A and B, conversely it settled to the bottom of the spotting tray and...