Vocab
Something that can be observed or experienced.
What is a Phenomenon?
5. What is the smallest particle of water called?
A. An atom
B. A molecule
C. A compound
D. An element
What is B. A molecule
More layers = more resistance to heat flow = slower warming up or cooling down.
What is insulation
sides/walls
Lids
Straws
Cup material( thick vs. thin)
solid(ice)
Gas(air)
liquid(water)
What is the Cup systems
Mr. Johnson loves iced Coffee, but when he buys it from the coffee shop and gets to work its all melted and warm, He then buys Fancy cup and puts his coffee in there and when get gets to work his coffee is still cold and has lots of ice left why did the regular cup not keep his drink cold but the fancy cup did?
The fancy cup has more layers than the regular cup:
The regular cup only has one layer. Heat from the outside air easily get into the cup, melting the ice and warming the coffee.
The fancy cup has more than one layer , meaning it slows down the transfer of heat from the surroundings into the coffee.keeping the drink cold longer and preserving the ice.
The movement of thermal energy from one place to another
What is Heat transfer
4.How does the movement of particles change as a liquid cools down?
A. Particles move slower
B. Particles move faster
C. Particles change direction
D. Particles increase in size
What is A. Particles move slower
Good at keeping heat in
Traps in air, so heat does not move through them easily.
🔹 Examples:wood, rubber, glass, plastic and Styrofoam
What are Insulators?
Adding this iteam help decrease the amount of water leaving the system
What is a lid?
Carlos and his sister Eva are making an ice cold picture of lemonade to enjoy on a hot day. Carlos puts his lemonade in a regular cup with a straw in it, Eva puts her lemonade in a cup with a lid on it with a straw in her lid. Both of them drink the exact same amount of lemodade then the two decide to go outside and play for awhilw and when they come back Carlos notices that most his his drink is gone, and that Eva drink still has most of its liquid left, how is this possible?
Carlos’s lemonade was in an open cup, so the liquid was exposed to the air. On a hot day, evaporation occurs faster that’s why his drink level dropped.
Eva’s lemonade was in a cup with a lid, which slows down evaporation by trapping the liquid and reducing the exposure to air. Her drink stayed mostly the same because less water escaped.
allows heat energy to transfer quickly through it.
heat moves rapidly from the hot side to the cooler side.
🔹 Examples: Metals: copper, aluminum, iron, steel, silver
Whar are Conductors
Why does the evaporation of a liquid from the surface lead to cooling?
A. It removes heat energy from the liquid, lowering its temperature
B. It adds more particles to the liquid, increasing its volume
C. It changes the liquid's color, affecting its temperature
D. It increases the liquid's density, making it cooler
What is A. It removes heat energy from the liquid, lowering its temperature
Heat that can move through a medium that does not need air, water nor direct contact to transfer energy
What is Radiation
Systems in witch matter cannot escape nor enter bases on the principal that particles that are soild cannot move thorough other solid objects.
what is a Closed System
Emma is cooking dinner for her little brother while her mom is at work, she decides to cook Mac & Cheese so she turns on her stove and put a steal pot on the bunner. After a while of preparing other ingredients she forgot to add water to the pot, she tries to pick up the pot but immediately drops it because it was so hot! She didnt know it was hot untill she directly touch it, what concept of thermal energy can this connect too?
This situation connects to the concept of heat transfer through conduction.
Thermal energy from the stove burner moves into the steel pot.
Steel is a good conductor of heat, so the thermal energy spreads quickly throughout the pot.
When Emma touches the pot, heat is transferred directly from the hot pot to her hand, which is why she feels the burn and drops it.
When liquid particles gain enough energy to escape into the air as gas.
What is Evaporation
What conclusion can be drawn from the temperature change observed in both the cup system and the surrounding water bath?
A. Heat or cold moves through the cup wall, indicating energy transfer between systems
B. The cup wall is impermeable to energy changes
C. Temperature changes in the cup do not affect the water bath
D. Only light, not temperature, can pass through the cup wall
What is A. Heat or cold moves through the cup wall, indicating energy transfer between systems.
When water is heated its less dense, it rises toward the top of the pot. The water near the top is cooler, so its particles move slower, are closer together, and become denser casing them to fall to the bottom of the pot and heating up again tarting the cycle all over again.
What is the Convection cycle
True or False
The type of material plays no role in how the temperature is regulated in maintaining heat
Explain using Conductors and Insulators in response
Flase:The type of material is very important in how temperature is regulated because different materials conduct heat differently:
Conductors (like metal) transfer heat quickly, so they don’t keep things hot or cold very long.
Insulators (like foam, plastic, or multi-layer cups) slow down heat transfer, which helps maintain the temperature of a substance.
Jamal come home from playing outside with his friends all day and his mother tells him to take a shower, After cleaning up for about 15mins he steps out of the shower and notices that theres is fog on his bathroom mirror. It wasn'tlike this before, how did this fog get here?
The fog on the bathroom mirror is caused by condensation.
While Jamal was taking a hot shower, water evaporated from the warm water and turned into water vapor (steam).
The bathroom mirror is cooler than the steam in the air.
When the warm, moist air touches the cooler surface of the mirror, the water vapor loses energy and changes back into tiny liquid droplets.
These tiny droplets form a foggy layer on the mirror.
When the water at the bottom of the pot is heated by the flame, those water particles gain energy, move faster, and spread out. This makes them less dense.
What is Convection?
Why do gases like perfume spread from one side of a classroom to the other?
A. Gas particles multiply as they move
B. Gas particles are smaller than liquid particles
C. Gas particles are attracted to objects around the room
D. Gas particles move freely and can cover large distances
What is D. Gas particles move freely and can cover large distances
Fill in the blank:
The food coloring spread out more in hot water than in cold water because ___________. Our evidence is _____________ and ________________.
The food coloring spread out more in hot water because the water particles have more kinetic energy, by moving faster and moving the food coloring particles around more. Our evidence is that in the simulation, we observed water particles in hot water moving faster and water particles in cold water moving slower
When liquids get hotter, their particles move faster and spread out more, colder liquid particles move slower and stay closer together.
what are Particle behavior in liquids
Angie is with her mother shopping for a new outfit to wear to school tomorrow. They spend about 2 hours and when they come back from shopping they notice that its very hot outside, They open thire door and ita way hotter than it is outside. Explain what happend
During the 2 hours of shopping, Heat got in through the car’s windows.
Once inside, the geat is absorbed by the car’s interior.
This heat cannot easily escape through the windows, so it gets trapped inside the car, making it much hotter than the outside air.
.