Life on Enceladus?
Life on Enceladus?
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Resource from the ENGAGE project, which won 'best open educational resource (2017)'
Evidence from Cassini, a robot spacecraft, suggests that there are oceans of hot water on Saturn’s icy moon, Enceladus. Might the oceans be home to alien life? In this activity students use their knowledge of the behaviour of water in its liquid and solid states to weigh up the evidence for and against the presence of liquid water on Enceladus. They then decide if it is worth sending a second spacecraft to look for alien life on this icy moon.
Learning objective
- Particle model: Explain the properties of solids, liquids and gases based on the arrangement and movement of their particles
- Draw conclusions: Judge whether the conclusion is supported by the data
Blueprint curriculum link
- Unit: Substances & particles
- Concept: Particle model: Substances can be modelled as small particles in motion. Their energy and arrangement differs between states of matter
- Skills: Explanations: Critique a claim for whether there is evidence
- Learning stage: Analyse
Activity contents
- Teachers guide
- PowerPoint file
The activity is delivered as a zip file. After you checkout, you will be sent an email with the link to download it.
Weblinks
Video clips with Brian Cox about what the Cassini spacecraft discovered about Enceladus. Suitable for use in class to introduce the activity.
Information about Enceladus from NASA, including links to resources news releases about the findings of Cassini.
Information about Enceladus from NASA, including links to a virtual tour, information about its atmosphere and news releases about the findings of Cassini.
Useful teacher background about recent findings.
Q&A
For the Year 7 Mastery Practice book:
For the Y9/GCSE Mastery Practice Book:
It was written to help year 7 students learn to transfer the scientific knowledge to unfamiliar situation. It can also be used by students in other years to improve their understanding of the fundamental concepts. Learning to apply is what will give students access to the 60% of marks at GCSE that demand more than recalling content. The book uses a research-based approach to teach students how to solve different types of problems.
The Practice Book has a chapter on each unit in the year 7 curriculum, based on a 5-year curriculum and AQA's KS3 Science Syllabus. Download the sample material to see exactly what concepts and types of problems are included.
The first strategy studente need to learn is to evaluate the problem and what knowledge is needed to solve it. 'Detect' simulates how an expert looks at a question. They make sense of the situation, look beyond the superficial details to find the deep structure This allows them to recognise this as an example of a problem type they have seen before, and recall the organised information they need to solve - key concepts. It ensures that students avoid their inclination to just look at the keywords, and dive in risking misunderstanding the situation. Detect is broken down into smaller steps, usually: draw a diagram, show values, identify unknown, decide the concept
This encourages students to bring into their working memory all their existing knowledge, externalise it on paper (to reduce working memory demands), and then home in on what's relevant to solving the problem.
The third stage of the problem solving strategy is the actual solution process using the knowledge from Recall.The Solve starts by showing how to use the knowledge from Recall and models a step by step process of moving towards a solution for the problem.We teach students how to write answers scientifically, using a variety of structures like claim-evidence-reasoning, and problem-solution, and cause-effect.
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