gases present in the atmosphere that can absorb the outgoing heat radiation and send it back to the earth. Examples are carbon dioxide, methane, nitrous oxide and water vapour. Ice Age refers to: a period of time extending from approximately 2 million years ago to 18,000 years ago when there were alternating periods of lower and warmer temperatures. During the colder or periods, ice sheets covered large “glacial” parts of the land surface and sea levels fell. During the warmer, or “interglacial” periods, temperatures were similar to those of today; the ice sheets retreated and sea levels rose again. Natural greenhouse effect refers to: the way that our atmosphere allows incoming energy from the sun to reach the earth’s surface, but traps some of the outgoing energy from the earth, so keeping the planet warm enough to support life. The greenhouse gases keep the average temperature at 15oC. Without the natural greenhouse effect, the average global temperature would be -18oC. Reasons for natural changes in climate may include: volcanic eruptions, changes in solar radiation, variations in the earth’s orbit and the influence of meteorites. EVIDENCE GUIDE Context of Assessment The evidence guide provides advice on assessment and must be Assessment of underpinning knowledge and read in conjunction with the communication of ideas can be done in the performance criteria, required classroom through observation and discussion. skills and knowledge, range Assessment of awareness talks on the causes of statement and the Assessment climate change in Vanuatu can be done in the Guidelines for the Training field or in the classroom. Package. Resource Implications Critical aspects for assessment and evidence required to demonstrate Assessment process and resources must ensure: competency in this unit Physical access to communities to observe communications and/or collection of information Evidence of the following and data knowledge, skills and attributes is Checklists for the learner and assessor to guide essential: community activities, communications and Understanding of the features observations climate change and its causes. Assessment Methods Communication skills to develop individual and Assessment methods must be chosen to ensure community awareness of the that knowledge of the causes of climate change causes of climate change. can be practically demonstrated. Methods must
gases present in the atmosphere that can absorb the outgoing heat radiation and send it back to the earth. Examples are carbon dioxide, methane, nitrous oxide and water vapour. Ice Age refers to: a period of time extending from approximately 2 million years ago to 18,000 years ago when there were alternating periods of lower and warmer temperatures. During the colder or “glacial” periods, ice sheets covered large parts of the land surface and sea levels fell. During the warmer, or “interglacial” periods, temperatures were similar to those of today; the ice sheets retreated and sea levels rose again. Natural greenhouse effect refers to: the way that our atmosphere allows incoming energy from the sun to reach the earth’s surface, but traps some of the outgoing energy from the earth, so keeping the planet warm enough to support life. The greenhouse gases keep the average temperature at 15oC. Without the natural greenhouse effect, the average global temperature would be -18oC. Reasons for natural changes in climate may include: volcanic eruptions, changes in solar radiation, variations in the earth’s orbit and the influence of meteorites. EVIDENCE GUIDE The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package. Critical aspects for assessment and evidence required to demonstrate competency in this unit Evidence of the following knowledge, skills and attributes is essential: Understanding of the features climate change and its causes. Communication skills to develop individual and community awareness of the causes of climate change. Context of Assessment Assessment of underpinning knowledge and communication of ideas can be done in the classroom through observation and discussion. Assessment of awareness talks on the causes of climate change in Vanuatu can be done in the field or in the classroom. Resource Implications Assessment process and resources must ensure: Physical access to communities to observe communications and/or collection of information and data Checklists for the learner and assessor to guide community activities, communications and observations Assessment Methods Assessment methods must be chosen to ensure that knowledge of the causes of climate change can be practically demonstrated. Methods must