Climate Evidence, Greenhouse Gases & Responses — Practice · Grade 6 Science
Chapter: Water, Air, Weather & ClimateWhat this practice covers
By the end of Climate Evidence, Greenhouse Gases & Responses you should be able to:
- I can explain how a greenhouse gas warms the planet in terms of infrared.
- I can describe the evidence that the recent rise in carbon dioxide comes from human activities.
- I can separate a question evidence can settle from one that involves values and trade-offs.
8 questions, written answer and multiple choice, each with a worked explanation.
Vocabulary used: mitigation, adaptation, evidence, system boundary, uncertainty.
Problem 1
Answer and explanation
No. Outgoing radiation remains essential; the gases affect transfer and the temperature needed for balance, not an absolute seal.
Compare the scientific meaning and reasoning after an independent attempt. A different accurate supported response can be correct; human review is required.
Problem 2
Answer and explanation
It tests a pattern through different measurements and reduces dependence on one instrument, site, or repeated source.
Compare the scientific meaning and reasoning after an independent attempt. A different accurate supported response can be correct; human review is required.
Problem 3
Answer and explanation
Different influences can produce changes. Explaining cause requires mechanisms, comparisons, and evidence beyond an unlabeled correlation.
Compare the scientific meaning and reasoning after an independent attempt. A different accurate supported response can be correct; human review is required.
Problem 4
Answer and explanation
No. Define the mechanism, desired outcome, constraints, and measurements, then evaluate a feasible alternative fairly.
Compare the scientific meaning and reasoning after an independent attempt. A different accurate supported response can be correct; human review is required.
Problem 5
Answer and explanation
The shade plan addresses exposure adaptation but exceeds the five-token limit. The redesign fits the cost condition and targets energy use; any emissions benefit would depend on the energy source and other information. A 3 °C change and 20 energy units are different quantities and cannot be added as one score. The records are illustrative, not a tested policy or a required preference.
Compare the scientific meaning and reasoning after an independent attempt. A different accurate supported response can be correct; human review is required.
Problem 6
Answer and explanation
No. A jar also changes convection and other conditions. It can illustrate selected energy ideas, but a full atmospheric explanation needs appropriate radiation evidence and explicit model limits.
Compare the scientific meaning and reasoning after an independent attempt. A different accurate supported response can be correct; human review is required.
Problem 7
- The atmosphere is a perfectly sealed roof that blocks all outgoing energy.
- mitigation: Reducing causes or drivers of a problem, such as greenhouse-gas emissions in a climate response.
- A classroom jar or one trend graph proves every cause and policy conclusion.
- One illustrative result establishes every real condition and needs no further evidence.
Answer and explanation
mitigation: Reducing causes or drivers of a problem, such as greenhouse-gas emissions in a climate response.
Reducing causes or drivers of a problem, such as greenhouse-gas emissions in a climate response. The shade plan addresses exposure adaptation but exceeds the five-token limit. The redesign fits the cost condition and targets energy use; any emissions benefit would depend on the energy source and other information. A 3 °C change and 20 energy units are different quantities and cannot be added as one score. The records are illustrative, not a tested policy or a required preference.
Problem 8
- A classroom jar or one trend graph proves every cause and policy conclusion.
- The atmosphere is a perfectly sealed roof that blocks all outgoing energy.
- adaptation: Reducing exposure or harm under changed conditions.
- One illustrative result establishes every real condition and needs no further evidence.
Answer and explanation
adaptation: Reducing exposure or harm under changed conditions.
Reducing exposure or harm under changed conditions. The shade plan addresses exposure adaptation but exceeds the five-token limit. The redesign fits the cost condition and targets energy use; any emissions benefit would depend on the energy source and other information. A 3 °C change and 20 energy units are different quantities and cannot be added as one score. The records are illustrative, not a tested policy or a required preference.