### M: Motion

#### M.1: The velocity of an object is the rate of change of its position. As a basis for under-standing this concept:

M.1.b: Students know that average speed is the total distance traveled divided by the total time elapsed and that the speed of an object along the path traveled can vary.

M.1.c: Students know how to solve problems involving distance, time, and average speed.

M.1.f: Students know how to interpret graphs of position versus time and graphs of speed versus time for motion in a single direction.

### F: Forces

#### F.2: Unbalanced forces cause changes in velocity. As a basis for understanding this concept:

F.2.a: Students know a force has both direction and magnitude.

F.2.b: Students know when an object is subject to two or more forces at once, the result is the cumulative effect of all the forces.

F.2.c: Students know when the forces on an object are balanced, the motion of the object does not change.

F.2.d: Students know how to identify separately the two or more forces that are acting on a single static object, including gravity, elastic forces due to tension or compression in matter, and friction.

F.2.e: Students know that when the forces on an object are unbalanced, the object will change its velocity (that is, it will speed up, slow down, or change direction).

F.2.f: Students know the greater the mass of an object, the more force is needed to achieve the same rate of change in motion.

### SM: Structure of Matter

#### SM.3: Each of the more than 100 elements of matter has distinct properties and a distinct atomic structure. All forms of matter are composed of one or more of the elements. As a basis for understanding this concept:

SM.3.a: Students know the structure of the atom and know it is composed of protons, neutrons, and electrons.

SM.3.d: Students know the states of matter (solid, liquid, gas) depend on molecular motion.

### SS: Earth in the Solar System (Earth Science)

#### SS.4: The structure and composition of the universe can be learned from studying stars and galaxies and their evolution. As a basis for understanding this concept:

SS.4.b: Students know that the Sun is one of many stars in the Milky Way galaxy and that stars may differ in size, temperature, and color.

SS.4.e: Students know the appearance, general composition, relative position and size, and motion of objects in the solar system, including planets, planetary satellites, comets, and asteroids.

### R: Reactions

#### R.5: Chemical reactions are processes in which atoms are rearranged into different combinations of molecules. As a basis for understanding this concept:

R.5.b: Students know the idea of atoms explains the conservation of matter: In chemical reactions the number of atoms stays the same no matter how they are arranged, so their total mass stays the same.

R.5.c: Students know chemical reactions usually liberate heat or absorb heat.

R.5.d: Students know physical processes include freezing and boiling, in which a material changes form with no chemical reaction.

R.5.e: Students know how to determine whether a solution is acidic, basic, or neutral.

### CH: Chemistry of Living Systems (Life Science)

#### CH.6: Principles of chemistry underlie the functioning of biological systems. As a basis for understanding this concept:

CH.6.c: Students know that living organisms have many different kinds of molecules, including small ones, such as water and salt, and very large ones, such as carbohydrates, fats, proteins, and DNA.

### PT: Periodic Table

#### PT.7: The organization of the periodic table is based on the properties of the elements and reflects the structure of atoms. As a basis for understanding this concept:

PT.7.a: Students know how to identify regions corresponding to metals, nonmetals, and inert gases.

PT.7.b: Students know each element has a specific number of protons in the nucleus (the atomic number) and each isotope of the element has a different but specific number of neutrons in the nucleus.

PT.7.c: Students know substances can be classified by their properties, including their melting temperature, density, hardness, and thermal and electrical conductivity.

### D: Density and Buoyancy

#### D.8: All objects experience a buoyant force when immersed in a fluid. As a basis for understanding this concept:

D.8.a: Students know density is mass per unit volume.

D.8.b: Students know how to calculate the density of substances (regular and irregular solids and liquids) from measurements of mass and volume.

D.8.c: Students know the buoyant force on an object in a fluid is an upward force equal to the weight of the fluid the object has displaced.

D.8.d: Students know how to predict whether an object will float or sink.

Correlation last revised: 5/8/2018

This correlation lists the recommended Gizmos for this state's curriculum standards. Click any Gizmo title below for more information.