Category 1
Describe how the particles are packed together for a solid, liquid, and a gas.
solid - tightly packed
liquid - some movement
gas - loosely packed
When ice melts into water, is heat being added or removed?
added
Which is an example of a molecule?
a. hydrogen H
b. H20
c. oxygen O
d. matter
b. H20
If someone has 90 grams of water in a cup and adds 10 more grams of water, what is the total weight of the mixture now?
100 g total
If water vapor is cooled and collects on an object, like morning dew on grass, what phase change is this?
Which property is a qualitative property?
a. a pencil's length is 15 inches
b. a book's weight is 10 ounces
c. an apple's color is red
d. a car's speed is 60 miles per hour
c. an apple's color is red
Which state of matter is the LEAST dense?
*solid, liquid or gas
gas
physical
If one substance weighs 30 grams, another weighs 20 grams and you mix them together, how does this affect the weight?
Their weights combine to now make 50 grams
If you were to travel to the moon, would your weight change or would your mass change?
Weight, mass always stays the same
Describe what happens to molecules of a solid as it melts into a liquid.
Molecules spread out or become more loosely packed
a. area
b. volume
c. density
d. mass
b. volume
The color of an object can be described as a _____________________ property.
a. gaseous
b. gravitational
c. physical
d. chemical
c. physical
If a student mixes sand and gravel together in a container, has a new substance been created?
How do you know?
No, you can still separate them
If you were to mix vinegar and baking soda to create a solution, would this create a physical or chemical change?
Chemical
What property of matter ALWAYS stays the same?
MASS
What tiny particles make up all matter?
a. cells
b. organs
c. tissues
d. atoms
d. atoms
What type of change happens when cookie dough is baked into a cookie?
chemical
You have two cups of water, one with plain water and one with salt water, and there is an egg in each one.
The egg is not floating in the plain water, but is floating in the salt water.
What does this tell us?
When we created our lava lamp experiment and mixed oil and water, why did the oil and water separate?
oil is less dense than water so it rises to the top and separates
Which is a quantitative property?
a. the ruler is accurate
b. the ruler is yellow
c. the ruler is 12 inches long
d. the ruler is made of plastic
c. the ruler is 12 inches long
What phase change happens when heat is added to a liquid?
evaporation
Which is the MOST dense state of matter?
*solid, liquid, or gas
solid
One has salt water and one has plain water.
How could Melody figure out which one has salt water?
a. listen to the bottles
b. weigh the bottles
c. roll the bottles
d. shake the bottles
b. weigh the bottles
When we made dancing popcorn, we mixed baking soda, water, and vinegar to make the popcorn "dance." What gas was produced from this chemical change?
Carbon dioxide gas