Learn // Topics
All topics
97 to 120 of 547 topics
By subject and area, youngest first
Science // Ecosystems & Habitats
Pollination & Pollinator DeclineExplain the importance of insect pollination for plant reproduction and human food security, and discuss the consequences of pollinator decline
Ages 11 to 12ConceptScience // Ecosystems & Habitats
Energy Loss Between LevelsExplain how energy is transferred between trophic levels in a food chain, why energy is lost at each stage, and use pyramids of biomass/numbers to represent…
Ages 11 to 12ConceptScience // Ecosystems & Habitats
The Water CycleDescribe the water cycle, tracing water through evaporation, condensation, precipitation, surface runoff, and transpiration in plants, explaining how the sun…
Ages 11 to 12ConceptScience // Ecosystems & Habitats
Extinction & Rapid ChangeExplain how environmental change can outpace a species' ability to adapt through natural selection, leading to extinction, using historical and contemporary…
Ages 12 to 14ConceptScience // Ecosystems & Habitats
The Carbon CycleDescribe the carbon cycle, tracing carbon through photosynthesis, respiration, feeding, decomposition, and combustion, and explain the role of each process
Ages 12 to 13ConceptScience // Ecosystems & Habitats
How Natural Selection WorksExplain natural selection as the mechanism of evolution: heritable variation + competition for resources + differential survival and reproduction = change in…
Ages 12 to 14ConceptScience // Ecosystems & Habitats
Evidence for EvolutionDescribe the main types of evidence for evolution: the fossil record (change over time), comparative anatomy (homologous structures), and the geographic…
Ages 12 to 14ConceptScience // Ecosystems & Habitats
Species Distribution & ChangeExplain how environmental change (climate change, habitat loss, pollution) affects the distribution of species, including range shifts, local extinction, and…
Ages 12 to 13ConceptScience // Ecosystems & Habitats
Variation in SpeciesExplain variation within and between species, distinguishing between continuous variation (e.g. height) and discontinuous variation (e.g. blood group), and…
Ages 12 to 13ConceptScience // Ecosystems & Habitats
Biodiversity & ResilienceExplain what biodiversity means, why high biodiversity makes ecosystems more resilient, and describe the ways human activity threatens biodiversity (habitat…
Ages 12 to 14ConceptScience // Ecosystems & Habitats
Toxins Building Up in Food ChainsExplain how organisms affect and are affected by their environment, including the bioaccumulation of toxic materials (e.g. pesticides, heavy metals) through…
Ages 12 to 13ConceptScience // Ecosystems & Habitats
Chromosomes, Genes & DNADescribe the relationship between chromosomes, genes, and DNA in heredity, including the double helix structure of DNA and the historical roles of Watson…
Ages 12 to 13ConceptScience // Ecosystems & Habitats
Genetic MutationExplain genetic mutation as a random change in DNA sequence, describe causes of mutation (e.g. radiation, chemicals, copying errors), and explain that most…
Ages 12 to 14ConceptScience // Ecosystems & Habitats
Predicting Inherited TraitsExplain how alleles are inherited in sexual reproduction and use Punnett squares to predict the probability of offspring inheriting a characteristic, including…
Ages 13 to 14ConceptScience // Energy
Sunlight warms things upMake observations to determine the effect of sunlight on Earth's surface, noticing that sunlight warms the ground, water, and objects
Ages 5 to 6ConceptScience // Energy
Building shade from the sunUse tools and materials to design and build a structure that will reduce the warming effect of sunlight on an area, such as a shade or shelter
Ages 5 to 6MethodScience // Energy
Naming types of energyName and use vocabulary for types of energy and energy transfer — kinetic energy, potential energy, heat energy, light energy, sound energy, electrical energy…
Ages 7 to 9LanguageScience // Energy
Building a simple circuitConstruct a simple series electrical circuit, identifying and naming its basic parts: cells, wires, bulbs, switches, and buzzers
Ages 8 to 9MethodScience // Energy
What uses electricity at homeIdentify common appliances that run on electricity and understand that electricity is a form of energy that powers devices in everyday life
Ages 8 to 9ConceptScience // Energy
How switches workRecognise that a switch opens and closes a circuit, controlling whether a lamp lights or a buzzer sounds
Ages 8 to 9ConceptScience // Energy
Will the bulb light up?Identify whether or not a lamp will light in a simple series circuit, based on whether the lamp is part of a complete loop with a battery
Ages 8 to 9ConceptScience // Energy
Conductors and insulatorsRecognise some common conductors and insulators, and associate metals with being good conductors of electricity
Ages 8 to 9ConceptScience // Energy
How energy travels aroundObserve and provide evidence that energy can be transferred from place to place by sound, light, heat, and electric currents
Ages 9 to 10ConceptScience // Energy
Reading and drawing circuit diagramsDraw and read simple circuit diagrams using standard symbols for cells, bulbs, switches, buzzers, and wires; identify whether a circuit is complete or broken…
Ages 9 to 10Representation