Solid, Liquid, Gas
If you pour milk from a tall glass into a wide bowl, what happens to the milk?
It changes shape to fit the bowl, but the amount of milk stays the same.
A student wants to measure the mass of a rock during a science lab. Which tool should the student use?
A Triple Beam Balance
What is magnetism?
A force that pulls magnetic objects across a distance
Which property tells us how much matter is in an object?
Mass
They are definite (They do not change)
Honey is thick and sticky, but it flows when you pour it. What state of matter is honey?
Liquid
A scientist measures the mass of a solid block of ice. The ice block is then left out in the sun until it melts completely into liquid water. What happens to the mass of the water?
The mass stays the same because the amount of matter did not change.
How many poles does a magnet have?
2
What is mass?
The amount of matter or stuff inside an object
Would an aluminum can be attracted to a magnet?
No
What do we call the process when an ice cube sits out on a warm counter and turns into liquid water?
Melting
Which of these objects would most likely have a mass of about 1 gram?
A paperclip
A bicycle
A heavy textbook
A desk
A paperclip
What are the two poles of a magnet?
North and South
If an object is less dense than water, what will happen when you drop it into a bucket of water?
It will float on top of the water
Two objects are the same size. Object A has a mass of 20 grams. Object B has a mass of 50 grams. Which has a greater density?
Object B
How does air (a gas) behave when it is pumped inside a basketball?
It spreads out to fill the entire inside space of the ball.
Matter is...
Anything that has mass and takes up space/ Stuff
What happens when opposite poles are placed near each other?
They attract
Why does a wooden block float in water while a glass marble of the exact same size sinks?
The wood is less dense than water, while the glass is denser than water
A student wants to find the mass of a rock. What tool should he use?
A balance
You pour a very cold glass of lemonade on a hot summer day, and soon water drops form on the outside of the glass. How did those drops get there?
Invisible water gas in the air touched the cold glass and turned into liquid water.
When using a triple beam balance, what is the first thing you must do to ensure your measurement is accurate before placing an object on the pan?
Make sure all the sliders are at zero and the pointer lines up with the zero mark.
A student tests a metal key with a magnet. They key does not move toward the magnet. What can the student conclude?
The key is not magnetic
If you mix cooking oil and water in a jar, the oil always floats on top of the water. What does this tell you about the density of oil compared to water?
Oil is less dense than water
A student puts a small metal ball into a cup of water. The ball sinks to the bottom. What does this tell us about the ball?
It has greater density than water.