What does the triangle stand for in the equation for average speed?
(Average speed= distance travelled/ time elapsed)
200
1. All ionic compounds are solid at room temperature.
2. Molecular componds are very difficult to predict.
Name 2 characteristics of componds
200
Phloem and xylem are part of this bundle
What is vascular bandle
200
Energy of a moving object.
What is kinetic energy?
200
One of two points where earyhs poles are tilted toward or awat from the sun
What is solstice
200
Green thing that soaks up cO2
What is a tree
300
ACID-
-H, for hydrogen tends to appear one or more times on the left side of the formula.
BASE-
-high solubility.
-OH, appears on the right side of the formula.
How can you recognize acids and bases by their formulas?
300
Water + carbon dioxide>>> Glucose + oxgen
What is formulanfor photosynthesis
300
The total energy, including heat, in a system and its surrounds remain constant.
What is the first law of thermodynamics?
300
The degree of wich earths poles are tilted
What is angle of inclination
300
A mixture of several indicators that change colour as the acidity changes.
What is a universal indicator?
400
A chemical reaction between two ionic componds in a solution that often results in the formation of at least one percipitate.
What is a double replacement reaction?
400
The attraction of water molecules to molecules of other substances
What is adhesion
400
RENEWABLE- solar, wind or geothermal
NON-RENEWABLE- nuclear or fossil fuel
What are some examples of renewable and non-renewable energy sources?
400
Grasslands, rain forest, teiga are all examples of
What is biomes
400
Root hairs, dermal cells or gaurd cells
Name 3 examples of specialized cells
500
A period is the horizontial row numbered 1-7
A family is the vertical column numbered 1-18
What is the difference between a period and a family?
500
Pores that allow gases to pass through
What is stomata
500
Open, closed and isolated
A system is a set of interconnected parts, name all 3 types of systems.