Climate change evidence and human impacts are central to understanding how scientists investigate Earth's changing climate and how human activities influence global energy systems. This Grade 10 Science worksheet explores instrument records, indirect climate evidence, greenhouse gases, land-cover changes, and the scientific evaluation of competing explanations. Students practise interpreting evidence, recognizing uncertainty, and considering how climate-related decisions affect communities.

Explore Climate Evidence and Human Influence

Students examine how thermometers provide direct air-temperature measurements while ice cores and tree rings offer indirect evidence of past environmental conditions. They distinguish short-term weather variability from longer-term climate patterns and consider why scientists compare observations from different sources and timescales.

The worksheet also investigates how burning fossil fuels releases carbon dioxide and how deforestation can change land cover and reduce carbon storage in vegetation. Natural influences, including volcanic eruptions and changes in solar output, provide opportunities to compare alternative explanations for climate patterns and evaluate the timing, duration, and direction of different influences.

What Students Practise

• Interpreting instrument records and indirect evidence to identify climate patterns.
• Explaining how greenhouse-gas concentrations, fossil-fuel combustion, and deforestation influence Earth's energy balance.
• Evaluating proposed climate explanations by comparing evidence, alternative explanations, and uncertainty.
• Responding to differences between instrument readings using repeated observations and independent evidence.
• Considering safe investigations, collaborative analysis, and the societal implications of climate decisions.
• Representing Indigenous perspectives responsibly by using attributable sources and avoiding invented community quotations.

Worksheet Activities

Students begin with an informational reading passage that establishes the scientific context for climate evidence and human actions. Multiple-choice questions ask them to apply concepts to instruments, historical evidence, fossil fuels, deforestation, uncertainty, natural climate influences, and investigation design. True-or-false statements reinforce scientific reasoning and challenge common misconceptions.

Short-answer responses require students to explain how different evidence sources complement one another, describe a human influence on climate, and evaluate a community proposal to replace paved ground with vegetation. A labeled diagram, categorization activity, and short-note task provide additional opportunities to organize and communicate scientific ideas.

What's Included

• Science worksheet: Reading passage, multiple-choice questions, true-or-false statements, short-answer responses, labeled diagram, categorization activity, and short-note task.
• Separate answer key PDF: Answers to support checking student work and reviewing responses.
• Student Notes lines: Space at the bottom of the worksheet for recording key ideas.
• Teacher Guide: Included in the answer key PDF, with learning objectives, teaching tips, discussion questions, and common mistakes.

Classroom Use

Use this climate science worksheet for guided reading, independent practice, classroom discussion, review, or a lesson on energy flow in global systems. The questions encourage students to connect scientific evidence with real-world decisions while recognizing that reliable conclusions require careful investigation and consideration of uncertainty. The teacher guidance supports discussion of misconceptions and helps teachers extend learning through evidence-based questions.

Designed for Grade 10 Science, this resource is suitable for exploring climate evidence, human impacts on climate, and scientific reasoning within the Alberta curriculum context. The separate answer key and included teacher guidance make it easier to review responses and facilitate thoughtful discussion about climate science and community decisions.