Vocabulary
A tool used to measure mass?
balance
Two or more substances that are mixed together but easily separated are called
mixtures
If I wanted to measure the length of a worm, what metric unit would I use?
centimeters
When a solid changes to a liquid it's called _____________________________
the melting point
Painting a wall is a ___________ change.
physical
The basic metric unit of mass?
gram
what makes a solution different from a mixture ?
When the things are put together, one substance spreads evenly throughout the other & can not be easily separated.
If I wanted to measure the mass of a dog, what metric unit would I use?
Kilograms
When a liquid changes to a solid it's called
the freezing point
Scientist use agreed-on units of measure because they _______
a. like to be different
b. are more accurate when they measure things
c. it's always been that way
b. more accurate measurements
The metric unit of mass equal to 1,000 grams is called _____?
kilogram
Give 2 examples of mixtures.
salad, trail mix, forks & spoons, Lucky Charms cereal, Legos, M&Ms, etc.
If I wanted to measure the volume of a large box, what metric unit would I use?
Cubic units
When a _________ changes to a_________ it's called
boiling point.
liquid to a gas
A ______change results in a new kind of matter being formed.
Chemical change
Anything that has mass & takes up space is called?
matter
Give 3 examples of solutions?
salt water, tea, coffee, choc. milk etc.
How would you find the volume of an irregular shaped piece of iron?
Use a graduated cylinder, drop it in & see how much the water went up.
The ______ pt. & the _________pt. both need energy to occur.
melting pt. & boiling pt.
What happens to the particles of a liquid it is cooled to it's freezing point?
a. they move faster
b. they come closer together
c. they escape into the air
b. they come closer together
The amount of mass in a certain volume is called_______ ?
density
Bobby says that sand is water is a solution. Is he correct? Explain why or why not.?
No, it separates when sand sinks to the bottom.
What is the volume a a large rectangular shaped box that is 2 meters by 3 meters by 4 meters?
24 cubic meters
For a liquid to change to a solid, it must _________energy.
lose
If you put 2 liquids in a bottle & shake them, when they settle, the one that is less dense will do what?
Separate & FLOAT ON TOP