The Atom
Variables and Graphing
???
Mixtures and Solutions
Elements and Compounds
100
The definition of the atom is this.
What is the smallest unit of matter? (variations can be accepted)
100
This type of variable is your input, something you change.
What is an independent variable?
100
This is the process by which two nuclei collide and join to form a larger nucleus.
What is nuclear fusion?
100
Heterogeneous and homogeneous mixtures are distinguished based on this property.
What is our ability to separate the ingredients. (variations can be accepted)
100
This is the difference between elements and compounds.
What is, elements are composed of only one type of atom, compounds are composed of more than one?
200
This particle has no electric charge.
What is a / are neutron(s)?
200
You'd like to test how quickly you grow. You choose the days when you measure your height. Your height you measure is this variable.
What is the dependent variable?
200
This is the nuclear process which powers our power plants and atomic weapons.
What is nuclear fission?
200
Salt is dissolved in water. Salt water is an example of this.
What is a solution?
200
Hydrogen gas is made up of pairs of bonded hydrogen atoms (two hydrogen atoms bonded to each other). We thus call hydrogen gas this.
What is an element?
300
The nucleus comprises these two particles.
What are the neutron and proton?
300
On a graph, you plot your data for the independent and dependent variables. The independent variable is always plotted on this axis.
What is the x-axis?
300
An atom contains five electrons but only three protons. When protons and electrons aren't balanced, we call the atom this.
What is an / are ion(s)?
300
Salt is dissolved in water. The salt is called this component in the solution.
What is the solute?
300
Water is made up of two hydrogen atoms and one oxygen atom bonded to each other. We thus call water this.
What is a compound?
400
These particles orbit the nucleus in these spaces.
What are shells/clouds/orbitals?
400
The (x, y) coordinates of the second blue point from the left.
What is (30, 25)?
400
Both liquid water and ice are made up of the same famous H2O molecule. One difference between such a liquid and solid is this.
What is the distance between the molecules/particles / the strength of their chemical/EM bonds / the way they fill a container?
400
This is the tool we use to separate sand from water.
What is filter paper?
400
We can categorize and look up elements in this famous chart.
What is the Periodic Table of the Elements?
500
The atom clearly has mass. Most of it is composed of this.
What is empty space?
500
This is the gradient of the line function shown in the graph.
What is 1?
500
The density of a substance is defined as the ratio of its mass to its volume. In other words, Mass/Volume. Respond to the three following statements: (1) mass is measured in these units; (2) volume is measured in these units; (3) as volume stays constant and mass increases, the density does this.
What is: (1) grams/kilograms; (2) milliliters/liters; (3) increases.
500
One difference between a solution and an homogeneous mixture is this.
What is/are the chemical bonds between the ingredients? (variations can be accepted)
500
Two different elements, for example nitrogen and magnesium, are distinct (meaning they have different physical and chemical properties) because they have different numbers of this particle in the atom.
What is the / are proton(s)?