Step-by-step laboratory practicals for IB, IGCSE & GCSE Science
Author: marccurran
Transpiration is the loss of water vapour from plant leaves through stomata. The rate of transpiration is strongly affected by temperature, which influences both the evaporation of water from mesophyll cells and the aperture of stomata. In this investigation, you will use a potometer to measure water uptake as a proxy for transpiration rate across … Continue reading IBDP Internal Assessment: Step-by-Step Guide to Measuring Transpiration in Plants
Six standout science stories from this week: Cambridge powers an "impossible" LED, a kimchi microbe sweeps nanoplastics from the gut, NASA's Roman telescope prepares to weigh hidden neutron stars, a plant returns from extinction in the Australian outback, a remarkable stegosaur skull rewrites dinosaur evolution, and scientists explain why humans are so overwhelmingly right-handed.
A complete, free set of one-page knowledge organisers for Edexcel IGCSE Double Award Science (4SD0) — 64 topics across Biology, Chemistry and Physics, matched to the DA scheme of work.
A complete, free set of one-page knowledge organisers for Edexcel IGCSE Physics (4PH1) — all 22 topics, built for active revision. Download any topic below.
A complete, free set of one-page knowledge organisers for Edexcel IGCSE Biology (4BI1) — all 22 topics, built for active revision. Download any topic below.
A complete, free set of one-page knowledge organisers for Edexcel IGCSE Chemistry (4CH1) — all 28 topics, built for active revision. Download any topic below.