Atoms + Molecules
What is an atom? How is it different from a molecule?
An atom is an indivisible particle that makes up all matter. Molecules are made up of atoms.
What do scientists use the periodic table for?
For organizing the elements that make up all known forms of matter
What is the formula for density?
D = m/V
What is a pure substance? What is a mixture?
Pure substance = made up of the same thing
mixture = two or more pure substances mixed together
Who is Dr. Mae C. Jemison?
First Black woman to go into space
What are the three particles that make up atoms?
Electrons, Protons, and Neutrons
What information does the atomic number tell you? What about the atomic mass?
Atomic number = number of protons/electrons
Atomic mass = number of neutrons + protons
Density = how compact an object is
mass = how much matter is in an object
volume = how much space an object takes up
How can you tell the difference between a heterogeneous and homogeneous mixture?
Heterogeneous = you can see the different substances
Homogeneous = you cannot see the different substances
Where did Shirley Ann Jackson graduate from?
MIT
What are the charges of protons, neutrons, and electrons?
Positive, neutral, negative
Name the parts of an element cell
Atomic number
Atomic mass
Symbol
Element Name
How does density determine whether or not something floats or sinks?
If something has a higher density than the fluid or phase of matter around it, it will sink
Is a solution a mixture? If so, is it heterogeneous or homogeneous?
Yes, homogeneous
Why do we need to pay attention to the achievements of Black people in STEM specifically?
Black people's discoveries and contributions to STEM have gone largely unrecognized despite making breakthroughs that still effect our lives today
What does a carbon dioxide molecule look like? Draw it.
Explain the difference between metals, metalloids, and non-metals
Metals = shiny, malleable, conductors
Non-metals = dull, gas form, insulators
Metalloids = have properties of both metals and non-metals
Explain why a huge cruise ship will float in the ocean whereas a nickel will sink using the relationship between mass and volume
The mass and volume of a cruise ship match each other accordingly, leading the cruise ship to have less density than the nickel. The mass is really heavy and the ship is really big. The nickel is heavier than it is big which causes it to be more dense
What is the solvent in orange juice if orange juice a mixture of sugar, citric acid, and water?
This helped prevent famine and overcame the depleted soil that kept farmers from producing crops
Draw a Bohr Model of an atom that makes up the element Fluorine
Ms. Taylor decides!
Name an element and give some examples of how we use it in real life
Ms. Taylor decides!
If a ball has a volume of 260 cm^3 and a density of 5.51 g/cm3, how much mass does the marble have?
mass = 1432.6 g
Fill in the chart Ms. Taylor shows for how all matter is divided into either pure substances or mixtures
What is the movie Hidden Figures about? What does it have to do with Black History?
It is about the story of Katherine Johnson and other black women who worked as "computers" for NASA during the 1960s. Johnson's brain and calculations were largely responsible for the moon landing.