Mix and Flow of Matter
The state of matter that has a definite shape and volume.
Solid
The smallest unit that can perform the functions of life
Cell
The form of energy that you can see
Light
The mass of an object that is moved or lifted by a machine such as a lever.
Load
Conversion of a substance from the solid to the gaseous state without it becoming liquid.
Sublimation
What are two structures found in plant cells that are not found in animal cells, and what is their function?
Plant cells have a cell wall, which provides support and protection, and chloroplasts, which carry out photosynthesis. Animal cells do not have these structures.
The bending of light when it passes from one material into another
Refraction
You exert a force of 2.0 N on a lever and moved it a distance of 0.6 m. Calculate the work.
W = F x d
W = 1.2 J
Mixtures that contain 2 or more materials that are still visible.
Heterogeneous Mixture or Mechanical Mixture
Surrounds the cell and protects the cell's contents; selectively permeable; regulates the passage of substances into and out of a cell
Cell Membrane
The emission of light produced by chemical reactions inside the bodies of living creatures.
Bioluminescence
Name the six simple machines that are the building blocks of all mechanical systems.
Lever, wheel and axle, pulley, inclined plane, wedge, and screw.
The substance that dissolves in a solvent to form a solution.
Solute
The system that breaks down food, absorbs food particles and eliminates wastes.
Digestive System
In the eye, the colored ring; works like the diaphragm of a camera
Iris
Pulley
The property that describes a liquid's thickness or thinness.
Viscosity
55% of the blood that carries nutrients, waste products, hormones and blood cells.
Plasma
The process in which light strikes a surface and bounces back off that surface.
Reflection
A mechanic replaces a short wrench with a longer wrench to loosen a tight bolt. Which simple machine is being used, and why does the longer wrench help?
A lever. The longer wrench increases the effort arm, creating more torque and making the bolt easier to turn.