Nature of Science
Measurement
States of Matter
Chemical vs. Physical
Density and Mixtures
Potpourri
100
What are the first and last step of the scientific method?
First: Ask a Question
Last: Share Results
100
What measurement system do scientists use?
SI System or the International System of Units
100
What are the 4 states of matter?
solid, liquid, gas, plasma
100
Which property can only be observed when a substance changes into a new substance?
chemical property (ex. flammability, reactivity)
100
I add two objects of different densities to water, one floats and one sinks. Which one has the higher density?
The one that sank
100
Who was the most streamed Spotify artist in 2024?
Taylor Swift
200
When making a graph, what variable goes on the x-axis?
Independent Variable?
200
What is the length of this line in cm?
5.5 cm
200
Which states of matter have definite volume?
solid and liquid
200
Which of the following is an example of a physical change?
a. burning a piece of paper
b. rust forming on a nail
c. ice melting into water
d. baking a cake
c. ice melting into water
Phase changes are physical changes!200
What type of mixture is a salad?
Heterogenous Mixture
200
What is the world's most populated country?
India has over 1.46 billion people
300
What are the 3 parts of a conclusion?
claim, evidence, reasoning
300
What is the mass?
263.5 g
300
You are enjoying a glass of lemonade on a hot day, and you notice the outside of your glass is wet. What phase change is taking place?
condensation
300
Which of the following is a physical property?
a. Reactivity with acid
b. color
c. flammability
d. rusting
B. color
300
What is density?
the amount of matter in a given space
300
What is the most listened to song of 2024?
Espresso by Sabrina Carpenter
400
Is the following statements a qualitative observation, quantitative observation, or inference?
The student is carrying 3 folders.
Quantitative- there is a number (3)
400
Find the volume of the scuba diver:
8 mL
400
List all states of matter in order from least to most particle movement
solid -> liquid -> gas -> plasma
400
When making a solution of sugar and water, what type of change is occuring? Why?
Physical because you can separate the substances back out
400
A cat has a volume of 2000 cm3 and a density of 0.98 g/cm3. What is the mass of the cat?
Mass= 1960 g
400
What is the most used streaming platform?
Netflix
500
For the hypothesis below, name the IV, DV, and a constant:
A student wanted to see how the temperature of water changed at different depths of a pond.
IV: Pond Depth
DV: Temp of Water
Constant: Answers will Vary
500
How many mm are in 1 km?
1,000,000 mm
500
Name all 6 phase changes that we learned about.
melting, freezing, condensation, evaporation/boiling, sublimation, desublimation
500
Name 4 of the 5 indicators of a chemical change
Temperature change
Odor change
Precipitate
Color change
Bubbling
500
Name the two separation techniques you would use to seperate the following 3 substances.
Water, salt, and iron fillings
1. Magnet
2. Evaporation
500
What is the highest grossing film of 2024?
Inside Out 2