Randoms
What are the magnetic metals? (4)
Nickel
Iron
Cobalt
Steel
What is float?
Less density
In which state of matter are the particles moving the fastest? The slowest?
Particles move the fastest in gases. Particles move the slowest in solids.
Give examples of solutions and mixtures.
Mixtures - cereal and milk, salad, sand and water, or trail mix. Solutions - coffee and sugar, salt and water, sugar and water, coke.
Is a conductor of thermal energy always a conductor of electrical energy? Give an example.
No, not necessarily. Glass is a conductor of thermal energy, but not of electrical energy.
Describe how condensation happens.
As water cools down it changes from a gas to a liquid.
ex. Water drops form outside my drink
What is sinking?
More dense items do this
Draw what gas particles look like
particles should be far apart
What can you observe to determine if you have solution or a mixture? (Hint: think of what happens after you mix your substances).
In a mixture, after you mix the substances, you can still see them separately. In a solution, after you mix the substances, you cannot distinguish one from the other.
Which two types of energy did we talk about in class regarding conductors and insulators? Define each one.
Electrical energy - the energy of electricity Thermal energy - the energy of heat
I have to add all the numbers together!
What will a rock and wood do in water?
The rock will sick because it is more dense than water.
The wood will float because it is less dense than water.
When water vapor turns into liquid water drops, it is called this.
Condensation
What will happen when you separate a solution of 5g of salt and 100g of water?
Give examples of conductors and insulators of thermal energy AND electricity.
Conductors - copper, paper clip, aluminum, steel, glass (only for thermal energy).
Insulators - rubber, cotton, wood, plastic paper, glass (only for electrical energy).
How do i find the mass of a rock using a double pan?
I add all gram stackers together!
Wood sticks, a cork, cooking oil, ice cubes, and a foam cup
What are items that will float in water?
If i leave hot water in a beaker by the window, what will happen during the next 5 minutes as the water cools down?
water droplets will form (condensation)
What can I use to seperate sand and salt?
I can seperate salt and sand by adding water to them. I can use a paper filter to seperate the sand. Then I will evaporate the water and the sand will stay at the bottom.
What do we mean when we talk about a material being able to conduct? What is conductivity?
Conductivity refers to the ability of an object to transfer or transmit energy from source A to source B.
A student mixed 20 grams of salt into a beaker with 200 milliliters of warm water. Then, the student set the cup of saltwater on a windowsill undisturbed for one week. The student returned in a week to check on the beaker of saltwater.
Describe what happened when the salt was mixed with warm water, AND explain what most likely happened to the beaker of saltwater when the student returned to check in one week.
2 points: Identifies dissolving or breaking down into tiny
pieces as what occurred when salt was added to water
AND identifies that the water will evaporate, leaving
behind the salt after one week
1 point: Identifies only one occurrence above
0 points: None of the above
What is buyoncy?
the ability to float.
What process happens from a liquid to a gas?
evaporation
What can I use to seperate colored candy?
Tweezers or my hands
Plastic, glass, rubber, and wood are good _________ of _________ energy.
Insulators of Electrical energy