Word Wednesday 12

2. A new idea, invention, or way of doing something that helps people solve problems or improve their lives.
4. a renewable energy resource produced using heat from the earth’s interior
6. things that are happening now or in recent times.
8. expressions that include variables
9. a term that does not change
10. an unknown value represented by a symbol (usually a letter) in mathematical expressions and equations
14. an energy resource formed in the earth from plant or animal remains (examples: coal, oil, natural gas)
15. Something important from the past that still affects people today (like traditions, buildings, events or ideas).

1. Something outside a society’s or country’s control, that influences it (like trade, natural disasters, or contact with other groups).
3. performing the same operation on both sides of an equation
5. Something inside a society’s or country’s control, that affects how it develops (like leadership, resources, or decisions people make).
7. a number, a variable, or the product of numbers and variables
11. a renewable energy resource produced by ocean tides
12. a renewable energy resource derived from plant and animal waste
13. a renewable energy resource produced by the sun’s light or heat