States of Matter
What are the states of matter?
Solid, Liquid, Gas
What makes iron filings special?
They are magnetic
If Isai combines 15 grams of coffee and 30 grams of water, what would the solution's mass be?
45 grams
What is friction?
a force that stops or slows you down
a thermometer measures an object's...
Describe how close the particles are in each state of matter.
Solid: tightly packed together
Liquid: loosely packed
Gas: spread far apart
what makes sugar and salt special when putting it in a mixture?
it can dissolve in water
Does the mass of mixtures change when after you mix the substances? Explain why or why not.
NO because matter cannot be destroyed.
If two objects are pulling on something and it is not moving, the force is ....
balanced
an graduated cylinder measures an object's...
volume
Describe how the particles in each state of matter MOVE.
Solid- particles vibrate
Liquid- particles move past each other
Gas- particles move fast
Describe the physical properties of coffee and water BEFORE and AFTER you mix them.
BEFORE: coffee is brown, crystals, solid. Water is clear and liquid
AFTER: liquid is brown, no more crystals
AFTER you mix salt and water OR sugar and water, the appearance of the solution is....
clear or cloudy
which surface decreases the amount of the force it takes to move a toy car across it:
sandpaper, cardboard, or carpet?
cardboard
a bucket of water can be used to test an object's...
density
Draw the particles of each state of matter and give me real examples of each one.
3 pictures
answers vary
What physical property could Andrew use to separate different types of plastic bottles?
shape
If you mix 15 grams of coffee into water, and the total mass of the solution is 45, how mant grams of water did you originally start with?
45-15= 30 grams
Lili hurt her leg and needs to go to the nurse. Sebastian pushes her down the hall with a chair and Tovar helps pull her down the hall with a rope tied around the chair. How is energy being transferred to move Lili down the hall?
Sebastian pushes her, Tovar is pulling her transferring energy to Lili in the chair causing her to move.
a pan balance can be used to separate an object's...
mass
Oliver filled a gallon half full with water. He left the closed gallon in the sun for an hour while he went inside to eat. When he came back outside the sides of the gallon were pushing out.
*look at picture*
Explain why the balloon changed shape, using evidence from the models, AND describe what will happen if the gallon continues to be heated.
The gallon changed shape because the water evaporated and turned into water vapor. The gas particles spread far apart which caused the gallon to expand. If the gallon continues to be heated, it will keep pushing to the sides.
What physical properties do oil and sand have in common? What do they have different?
common: insoluble in water
different: oil is liquid, sand is solid
Francisco is making some ramen. He mixes 600 grams of noodles, 1,300 grams of water, and adds 200 grams of chicken. What is the mass of the mixture before AND after cooking?
2,100 grams before
2,100 grams after
How does changing force affect a car’s motion?
what tool can be used to conduct an experiment to test forces?
spring scale