This presentation covers OCR Gateway Biology 9-1 B1.4.4 Interaction of limiting factors This PowerPoint is a whole lessons included with student activities and animated answers. Experimental procedures to investigate how the rate of photosynthesis is affected by: Light level Temperature Carbon dioxide concentration Inverse square law for relative light intensity

This presentation covers OCR Gateway Biology 9-1 B1.4.3 Factors Affecting Photosynthesis This PowerPoint is a whole lessons included with student activities and animated answers. Definition for rate of photosynthesis The rate of photosynthesis affects the rate of biomass Limiting factors include, light level, carbon dioxide concentration, and temperature. Graphs for rate of photosynthesis against light level, carbon dioxide concentration, and temperature. Plotting data graphs. Exam questions.

This presentation covers OCR Gateway Biology 9-1 B1.4.1 Photosynthesis This PowerPoint is a whole lessons included with student activities and animated answers. Word and symbol equation for photosynthesis. Carbon dioxide diffuses from the air through the stomata. Water travels by osmosis through the root hair cells. Photosynthesis occurs inside the plant’s chloroplast. Chloroplasts contain a green pigment called chlorophyll. Photosynthesis is an endothermic reaction. The two main stages of photosynthesis. Comparing photosynthesis and aerobic respiration.

OCR A level Physics: 24.1 Alpha-particle Scattering Experiment Module 6 Particles and Medical Physics This PowerPoint is a whole lesson included with student activities, animated answers, homework questions with answers provided. This lesson covers: Developments of scientific models Thompson’s plum-pudding model Rutherford’s nuclear (planetary) model Rutherford’s experiment, observations, and conclusions Using Coulomb’s law to find the minimum distance between particles

This presentation covers GCSE Physics OCR Gateway P2.1.6 Introduction of final speed^2 – initial speed^2 = 2 x acceleration x distance Rearranging of final speed^2 – initial speed^2 = 2 x acceleration x distance Derivation of final speed^2 – initial speed^2 = 2 x acceleration x distance Three different methods for rearranging equations Kinetic energy, acceleration and speed problems with answers

This presentation covers OCR Gateway Biology 9-1 B1.3.3 Anaerobic Respiration This PowerPoint is a whole lessons included with student activities and animated answers. Recap of aerobic respiration Conditions for anaerobic respiration Word equation for anaerobic respiration in mammals Lactic acid and its affects. Oxygen debt Comparing aerobic and anaerobic respiration in mammals. Anaerobic respiration in plants - fermentation. Fermentation word equation and symbol equation. Exam questions.

This PowerPoint presentation with worked examples and student activities covers: Topic 2.1 of Science Fundementals of the OCR Applied Science Spec. Types of mixtures to include solutions, colloids and suspensions Difference between colloids and suspensions in terms of particle size Uses of common colloids in nature and medicine Types of colloids to include aerosols, emulsions, foams, gels and sols Significance of colloids in nature and medicine Alloys as mixtures of metals The character and features of alloys Uses of common alloys to include amalgam, solder, bronze, titanium alloy

OCR A level Chemistry: 29.2 Nuclear Magnetic Resonance (NMR) Spectroscopy This PowerPoint is a whole lesson included with student activities, animated answers, homework questions with answers provided. This lesson covers: Nuclear Spin Resonance Tetramethylsilane (TMS) Chemical Shift ẟ

This presentation covers OCR Gateway Biology 9-1 B1.3.1 Carbohydrates, Proteins, and Lipids This PowerPoint is a whole lessons included with student activities and animated answers. The three main macronutrients - carbohydrates, proteins, and lipids Names of enzymes - carbohydrase, amylase, protease, lipase What the macronutrients are broken down into - simple sugars, amino acids, fatty acids and glycerol. Metabolic rate Food tests and the positive results

This presentation covers OCR Gateway Biology 9-1 B1.2.4 Enzyme Reactions This PowerPoint is a whole lessons included with student activities and animated answers. Enzymes-catalysed reactions Rate of reaction Denaturing of enzymes and the active site Optimum temperature and optimum pH for enzymes Definition of concentration Increasing concentration of enzymes and substrates Saturation of substrates

This presentation covers OCR Gateway Biology 9-1 B1.2.3 Enzymes This PowerPoint is a whole lessons included with student activities and animated answers. Enzymes are made of protein. Enzymes are biological catalysts. Catalysts speed up the rate of reaction without being used up themselves. Enzymes and the lock and key hypothesis. Enzymes breaking down and bonding substrates.

This presentation covers OCR Gateway Biology 9-1 B1.3.2 Aerobic Respiration This PowerPoint is a whole lessons included with student activities and animated answers. Word equation for aerobic respiration Balanced symbol equation for aerobic respiration Aerobic respiration is an exothermic reaction The structure of mitochondria ATP and its uses Why blood flow increases to muscles when exercising

This presentation covers OCR Gateway Biology 9-1 B1.2.2 Transcription and Translation This PowerPoint is a whole lessons included with student activities and animated answers. The role of proteins and AI Proteins as polymers Explaining transcription mRNA and complementary bases Explaining translation

OCR A Level Physics: Gravitational Fields presentation, homework and answers.

This presentation covers OCR Gateway Biology 9-1 B1.2.1 DNA This PowerPoint is a whole lessons included with student activities and animated answers. DNA stands for deoxyribonucleic acid. DNA is found in the nucleus of cells. DNA is packaged into a thread-like structure called chromosomes. Humans typically have 46 chromosomes shared from their parents. Genes are sections of DNA that code for physical characteristics. The structure of DNA. DNA is comprised of monomers called nucleotides. A nucleotide consists of a phosphate group, a sugar (deoxyribose), and an organic base. There are four organic bases: Adenine, A. Thymine, T. Cytosine, C. Guanine, G. Hydrogen bonds in DNA.

This presentation covers OCR Gateway Biology 9-1 B1.1.4 Electron Microscopy This PowerPoint is a whole lessons included with student activities and animated answers. Comparing sizes of different cells Using standard form Using SI prefixes (nano, micro, milli, kilo, mega) Comparing electron microscopes and light microscopes.

OCR A Level Physics: Energy and Simple Harmonic Motion presentation with homework and answers

OCR A Level Physics: Gravitational Field Strength presentation with homework and answers

OCR AS level Physics: Archimedes’ Principle is a part of the Module 3: Forces and Motion Presentation come with worked examples, solutions and homeworks.

OCR A Level Physics: Resonance presentation with homework and answers