Science Mysteries

During a science fair, Braylon and Sophia observed water in a kettle over a flame until it started to disappear and turn into steam. What is this temperature called?

• Condensing point

• Boiling point

• Freezing point

• Melting point

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Drew and Macie were conducting an experiment in their science class when they accidentally mixed a cup of sand with a half cup of iron fillings. Can they separate them? If yes, how?

• No, they can not separate this mixture

• By using their hands

• With a filter

• By using a magnet

During a science fair, Mariana shines a flashlight towards a wall. Which of the following does NOT have mass?

• Light from Mariana's flashlight

• Water in a glass on Mariana's display table

• Air in a balloon at Ryan's booth

• An empty box used by Piper for his project

When Braydon took a trip to the Moon, he...

• weighed less on the Moon

• weighed more on the Moon

• had greater mass on the Moon

• felt greater magnetism on the Moon

Tags

NGSS.MS-PS2-4

During a science fair, Mia and Axel observed that electricity could flow through all of the following materials except one. Which one is NOT a Conductor?

• Water

• Iron

• Penny

• Wood

Heather placed a piece of wood in a pond at the park, and noticed it was floating on the surface. This observation indicates that the wood is.....

• more dense than water

• less dense than water

• is neither an insulator or conductor

• solid

Mariana made lemonade but accidentally dropped a cup of sugar into it. How can Mariana separate the sugar from the lemonade?

• By letting the sugar evaporate

• By letting the lemonade evaporate

• By drinking the lemonade and leaving the sugar behind

• By mixing it more

Mariana's electric kettle is powered by electrical energy. The kettle changes the electrical energy to.....

• wind energy

• solar energy

• thermal energy

• mechanical energy

Tags

NGSS.MS-PS3-3

During a science project, Mariana is building a circuit and needs to choose a material that allows electricity to pass through it for her wiring. What is the correct term for such materials?

• Battery

• Conductor

• Insulator

• Appliance

In a remote-controlled car that Sofia is playing with, the source of power would be a....

• battery

• open circuit

• closed circuit

• a wire

Tags

NGSS.MS-ETS1-1