Living Things (Biology)
What a food web or food chain shows moving through an ecosystem
A mix of things that are not chemically joined.
Mixture
The type of object that orbits a star
A simple push or pull.
To separate sand from water, you pour the water through this.
Filter
The bottom level in the classification hierarchy, after Genus
Species
A mixture where one substance dissolves completely into another, like cordial into water
What is a Solution?
The daily rise and fall of sea level, caused mainly by the Moon's gravity.
Tides
The unit used to measure force.
Newton
The method of leaving a liquid in the open air until it turns into a gas, leaving the solid behind.
Evaporation
This classification tool gives you two choices to follow until you identify an organism.
Dichotomous Key
The category of change (like melting or freezing) where the substance's chemical makeup remains the same.
Physical Change
This is what we call the predictable changes in the Moon's visible shape each month
Lunar Phases
The force that always acts against motion.
Friction
The technique used to separate the colours found in a marker's ink.
Chromatography
By checking these diagrams, scientists can predict the results of hunting or polluting an area
Food Chain or Food Web
The basic characteristic of a mixture—the parts can be easily separated
Keep Their Properties
When the Earth's orbit and tilt cause different areas to receive different amounts of light throughout the year.
Seasons
The force that pulls objects toward each other, giving objects weight.
Gravity
The process of boiling a liquid into a gas, then cooling the gas back into a pure liquid.
Distillation
The broadest group in the classification system (at the top)
Kingdom
This technique is used to separate large pieces of sediment from a liquid by simply pouring off the top liquid
Decanting
When the Moon perfectly blocks the Sun, casting a shadow on Earth.
Eclipse
An example of a simple machine that makes work easier
Lever, inclined plane, screw, etc.
The process of letting a substance turn from a liquid to a gas to get crystals
Crystallisation