MATTER
PROPERTIES OF MATERIALS
CONTACT
NONCONTACT
Random
100
What is the general process by which water changes into different forms?
changes in the state of matter
100
What are the 6 main types of properties of materials?
1. Hardness
2. Flexibility
3. Resistance
4.thermal conduction
5. elasticity
6. solubility
100
______ is a contact force that stops things moving or slows things down.
Give an example
FRICTION
moving a desk across the floor
100
Noncontact forces do not need to contact the object that is why they are also called ______ forces.
INVISIBLE
100
TRUE or FALSE:
Everything is made up of matter
*BONUS: Give an example
TRUE!
any example is possible--people, chairs, notebooks, phones, food etc.
200
Matter is anything that occupies ____1.____ and has ___2.___
1. occupies SPACE
2. has MASS
200
materials which are difficult to scratch are _______ and materials which are easy to scratch are _______.
Give an example of one.
hard
soft.
diamond is hard
200
Opening and closing a door is an example of what contact force? Explain the picture
PUSH AND PULL
normally to open a door you make contact and PUSH
to close a door you make contact and PULL
200
_________ can attract or repel objects.
BONUS: What is the experiment we saw in a video
MAGNETISM
200
What process do these pictures represent?
condensation -steam and heat from shower causes water gotitas
melting- ice left outside turns to liquid water
300
Mass is the _____1._____ in an object. We measure mass using weighing ____2._____.
1. the amount of matter
2. weighing scales
300
What is the difference between flexible and rigid?
Give one example
flexible easy to bend
rigid difficult to bend
ex: wood is rigid
300
What is happening in the picture and why is it contact force?
the person is touching/making contact with the clay and changing the shape of it which is an example of contact force
300
Explain the picture using poles
OPPOSITE poles attract
the SAME poles repel
magnets
300
Explain an example that shows elasticity (properties of material).
a rubber band- you can stretch it easily because it has elasticity and it can return to its original shape.
400
Volume is the _____1.____ an object occupies. We can measure volume using a measuring _____2.____.
1. amount of space
2. a measuring jug/cup
400
Describe a thermal conductor vs. thermal insulator. Give an example of each
conductor - allows heat to pass (iron pan)
insulator - doesnt allow heat to pass (plastic)
400
Act out an example of contact force
Estefi will judge your answers!
400
_____ is a force that attracts objects towards each other.
Draw an example of this at work.
*Think of ball in the air
GRAVITY
throw ball up in air it always gets pulled down by gravity.
400
solubility
salt is soluble -it dissolves in water!
rocks are insoluble - it can't dissolve!
500
What are the 4 changes in the state of matter of water that we learned? Describe 1 of them.
Evaporation= liquid ---> gas
Condensation= gas ---> liquid
Freezing (solidify) = liquid---> solid
Melting= solid ---> liquid
500
materials that are difficult to break are ________
materials that are easy to break are _______
1. resistant
2. fragile
500
EXPLAIN THE 2 FORCES AT WORK AND WHY?
gravity pulls the wood down but buoyancy pushes it back up and it floats
500
What is a contact force (define)? Give an example.
any action that changes the shape or position of an object.
kick a soccer ball