English National Curriculum - Science
Mission Objectives
Describe how adrenaline prepares the body for “fight or flight”
Explain the roles of adrenaline and thyroxine in the body, including their effects on physiological processes
Explain how thyroxine levels are regulated by negative feedback to control metabolic rate, growth and development
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Words and meanings to learn
gland
an organ in the endocrine system that produces and releases hormones into the bloodstream.
thyroxine
a hormone produced by the thyroid gland that controls the body’s metabolic rate
adrenaline
a hormone released by the adrenal glands that prepares the body for “fight or flight” by increasing heart rate, breathing rate and blood flow to muscles
receptors
specialised cells or proteins that detect changes in the environment (stimuli) and respond to specific signals, such as changes in temperature or hormone levels
negative feedback
a control mechanism in which a change in a condition triggers responses that reverse the change, keeping the body’s internal environment stable
Samantha is an accomplished science educator whose current work centres on curriculum design and professional development, supporting teachers to deliver high-quality science education through evidence-informed approaches. She is a former Head of Chemistry and Sixth Form Tutor with extensive Key Stage 4 and 5 experience, and has worked as an AQA examiner, giving her valuable insight into assessment standards and what students need to succeed.
Underpinning this is a strong foundation in applied science built across a range of industry roles. Samantha has held scientific roles at John Smith's Brewery, Yorkshire Water and WasteCare, where she led technical projects, drove operational efficiencies and ensured compliance with industry standards. Across these roles she has first-hand experience of how scientific knowledge translates into measurable outcomes in professional and commercial environments.
In her spare time, Samantha enjoys playing the accordion with her local orchestra and has recently taken up cricket.
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