Vocabulary

• solar cells: Photovoltaic cells that convert sunlight into electricity.
• in the world: Used to emphasize a question expressing surprise, confusion, or disbelief.
• around the world: In or to many countries.
• alternative energy: Energy generated from natural resources, such as sunlight, wind, rain, tides, and geothermal heat, which are renewable.
• same time: Occurring simultaneously or at the same point in time.
• in terms of
• at scale: In large quantities; with significant reach or impact.
• of a sudden: Quickly and unexpectedly; suddenly.
• in one year: Within a period of twelve months.
• come back: To reply to someone, often forcefully
• drive down: To cause something to decrease or become lower.
• in part: To some extent; partially.
• critical to: Extremely important or essential.
• put out: To publish, e.g. a book
• look for: To try to find a thing or person that is lost
• to the point: Expressing something directly and without unnecessary detail.
• on purpose: Intentionally; deliberately.
• crucial: Extremely important or necessary
• phenomenon: Unusual event, fact that can be studied
• figure: To appear in a game, play or event
• guarantee: To promise to repair a broken product
• basically: Used before you explain something simply, clearly
• crisis: Unstable situation of extreme danger or difficulty
• scale: Size, level, or amount when compared
• unprecedented: Not having happened before, or to such a degree
• imagine: To think creatively about; form mental picture of
• research: To study in order to discover new ideas and facts
• commercial: Radio or television advertisement
• trivial: Small; unimportant; worthless
• efficient: Able to produce results without waste
• inspire: To give someone an idea to do or make something
• federal: Consisting of several united states
• define: To explain the meaning of words
• generate: To create or be produced or bring into existence
• planet: One of the bodies that orbit the sun
• create: To make, cause, or bring into existence
• harness: To capture the power of something
• investment: Something purchased hoping its value will increase
• invest: To use resources to build for the future
• project: To predict what will happen in the future
• produce: Fresh foods such as fruits and vegetables
• fall: Season after summer and before winter; Autumn
• energy: Physical or mental strength
• bury: To put something into the ground and cover it
• fossil: Plant or animal that became rock after many years
• development: Act or process of growing bigger or more advanced
• credit: System to buy something and pay for it later
• notice: To become aware by sight, touch, or hearing
• policy: Document stating terms of an insurance agreement
• important: Having power or authority
• technology: Use or knowledge of science in industry etc.
• promise: To say you will certainly do something
• build: Your physical shape; physique
• government: Group of people and system that rule a nation
• program: To make someone act or think in a certain way
• solar: Concerning the sun, or its heat
• sudden: Happening or done quickly or unexpectedly
• deploy: To put into position (often a military operation)
• lease: Contract renting land, buildings, etc. to another
• step: Movement done as part of a particular dance
• devise: To think of and plan something
• start: First time or place that a thing exists; beginning
• world: All the humans, events, activities on the earth
• renewable: Being able to be replaced naturally
• playbook: Notebook with diagrams of the plays of a team
• baton: Short stick used by a music conductor
• rooftop: Top of a roof, e.g. of garden on a roof
• mid: At (or near) the middle point