Vocabulary
Measurement
Comparing Objects
Floating and Sinking
States of Matter
Physical and Chemical Change
100
All matter has _____ and _____.
Mass and Volume
100
We measure mass using a _______ and the units are ______.
Scale
Grams
100
The elevator on the ____ has more density because ____.
Right
It has more people in the same area (Or the people are more packed together)
100
The density of water is ____.
1 g/mL
100
Name the states of matter from coldest to hottest.
Solid
Liquid
Gas
100
A ____ change will make a new substance, but a ____ change will not make a new substance.
Chemical
Physical
200
The amount of matter in an object
Mass
200
We measure volume using a ______ and the units are ______.
Graduated Cylinder
milliLiters (mL)
200
The _____ has a higher density because ______.
The baseball has a higher density because it has more mass in the same volume. (Or the particles are more packed together)
200
Objects with a density more than 1 g/mL will _____, but objects with a density less than 1 g/mL will _____.
Sink
Float
200
We can change the state of matter by changing the ______.
Temperature
200
What question can we ask ourselves to decide between a physical and chemical change?
"Did I make a new substance?"
300
The amount of space an object takes up
Volume
300
We measure density using a _____ and the units are _____.
Calculator
g/mL
300
These boxes have the same ______, but Box B has more _____.
Same Volume
More Mass and Density
300
What can we infer about the density of:
- Cork
- Wood
- Aluminum
- Cork - Less than 1 g/mL
- Wood - Equal to 1 g/mL
- Aluminum - More than 1 g/mL
300
Describe the states of matter you observe.
The ice cube is a solid.
The water in the faucet is a liquid.
The water in the pot is a gas.
300
Baking a cake is a ___ change because ____.
Slicing a cake is a ___ change because ____.
Chemical - we started with ingredients and ended with cake, so we made a new substance
Physical - we started with a big cake and ended with smaller cake, but we did not make a new substance
400
Density is the amount of ______ in a specified ______.
Mass
Volume
400
Measurements of mass using a scale or volume using a graduated cylinder are described as ____ observations because ______.
If we did not have measurement tools, we would need to use ____ observations, which have _______.
Quantitative; they use numbers
Qualitative; they use adjectives
400
These balls have the same ______, but the marble has _______ and ______.
Same Mass
Marble has less volume and more density
400
If a log floats in water, what do I know about each piece of log that I chop off?
It will also float because density does not change.
400
What states of matter do you observe? How do you know?
The first beaker is a solid because the particles are packed close together.
The middle beaker is a liquid because the particles are not packed close together or spread apart.
The final beaker is a gas because the particles are very spread apart.
400
Give an example of a physical and chemical change involving a piece of wood.
Physical
- Chop the wood, break the wood, hammer a nail into the wood
Chemical
- Burn the wood
500
Peter needs to transport 1000 balloons to a party across town.
Should he choose a company that charges by mass or volume?
"I think he should choose the company that charges by ____ because ____."
500
During COVID, the requirement of social distancing ___ the density of locations because _____.
Decreased
People had to spread out
500
These boxes have the same _____, but the blue box has _____ and _____.
Same Mass
More volume and less density
500
You have three liquids:
- Water
- Blood (1.6 g/mL)
- Alcohol (0.8 g/mL)
You pour them into a cup and leave it overnight. What do you expected in the morning?
- The Blood will be on the bottom
- The water will be in the middle
- The alcohol will be on top
500
What happens to the density of materials as their temperature increases?
As temperature increases, density decreases because the particles spread out.
500
Give an example of a physical change and a chemical change that happens in digestion.
Physical - Teeth break food into bits; stomach muscles break bolus into bits
Chemical - Saliva turns food into bolus; stomach acids turn bolus into nutrients