Sobin and May are building a buzzer alarm but realized they lost their switch . Sobin wants to bridge the gap in the wires using a dry cracker, but May insists on using a paper clip. Who's right?

Teacher Andre told the class he didn't need a stomach because he could just jump up and down to mix his food. He swallowed a whole apple and started doing jumping jacks. Is he right?

Jonh jr thought his toy robot was way too slow with its 1.5V battery . He shouted, "I'll give it real power!" and tried to plug the robot's tiny wires directly into the 230V mains socket in the wall. Is it a good idea?

Teacher Andre tried to fix his broken desk lamp using a slice of plastic cheese as a switch. He told Sobin and May, "Cheese is yellow like a lightning bolt, so it must be a great conductor of electricity!" Is he right?

Harry’s lamp isn't working even though he just bought a brand-new battery . Aryan looked at the wire and saw that the plastic outer covering was perfec, but the wire had been bent and twisted so many times that the metal inside snapped

Rosie wanted to save her ice cream for next week, so she put it on the sunny windowsill. Angela said, "I think that’s a bad idea, Rosie!" Rosie replied, "No, it’s fine!'' What happens to the particles?

Doro tried to eat a giant, tough piece of steak using only his front incisors . Ivan watched him struggling and said, "You’re using the wrong tools! You need to use your _____ to rip and tear the meat!"

Oliver and Gumi were hanging up wet football shirts. Gumi said, "Let's put them in the dark, cold cupboard so the water doesn't get scared and stay in the shirts." Is he right?

David and Derek wanted to make the brightest light in the world. David added ten extra batteries . He shouted, "Now our bulb will be as bright as the Sun!" Derek noticed the bulb was very bright and the wires got hot. Is it safe?

Saigon decided to make a super-bright lamp for a party by connecting 100 light bulbs in one long line to a single small battery . He expected a blinding flash of light, but instead, the bulbs didn't even glow . Explain to Saigon why?

Amber and Hanna wanted to see if they could make a "water wire" . They poured a trail of salty water across the table to connect a battery to a bulb. Hanna was about to touch the water with her wet hands to see if it was working. Is it ok?

Ellie was building a circuit but ran out of wire . A Run said, "Don't worry! I have a gold ring and a piece of wet string to connect it!" Is it safe?