science lesson work

• What type of waves are light, water, and microwave waves?

  Transverse waves
• What are the two main parts of a transverse wave?

  Crest and trough
• What is the definition of wavelength?

  Distance between two consecutive crests or troughs
• What is the definition of frequency?

  Number of waves per second
• Why is the direction of a wave important?

  It determines the direction of energy transfer
• What type of waves are sound waves?

  Longitudinal waves
• What is the characteristic of particle movement in longitudinal waves?

  Particles move back and forth along the direction of the wave
• What type of waves are seismic waves?

  Waves that radiate from the surface focus of an earthquake
• What is a P wave?

  A type of seismic wave
• What is the main difference between transverse and longitudinal waves?

  Direction of particle movement
• What are the types of seismic waves?

  P waves, S waves, and surface waves
• What is the characteristic of P waves?

  They are the fastest type of seismic wave
• What are the main types of waves?

  * Transverse waves (light, water, microwave)

  * Longitudinal waves (sound)

  * Seismic waves (P, S, surface waves)
• What is biodiversity?

  All different kinds of life in one area
• Why is biodiversity essential?

  It supports processes necessary for life
• What are the negative impacts of human activities on biodiversity?

  • Harms wildlife
  • Kills natural ecosystems
  • Pollutes habitats
  • Causes habitat loss
  • Raises CO₂ levels
  • Leads to human-wildlife conflict
  • Causes habitat fragmentation
  • Reduces land space
  • Produces waste
• What does habitat loss refer to?

  Destruction of natural living spaces
• How does deforestation affect biodiversity?

  It raises CO₂ levels
• What is human-wildlife conflict?

  Interactions that harm wildlife due to humans
• What is habitat fragmentation?

  Breaking up of natural habitats
• What does reduced land space refer to?

  Less area available for wildlife and ecosystems
• What is a consequence of waste produced?

  Pollution of habitats
• What is the purpose of reducing wasteful use of resources?

  To prevent biodiversity loss
• How does reducing wasteful use of resources prevent biodiversity loss?

  It prevents chemicals from killing animals
• What is breeding animals outside of their natural environment called?

  Breeding in reserve gene pools
• What is the benefit of breeding animals in reserve gene pools?

  It increases the population of animals
• What are gene banks?

  Collections of genes to protect diversity
• How do gene banks help in preserving biodiversity?

  They may preserve the loss of genetic diversity
• What are the main strategies for preserving biodiversity mentioned?

  • Reducing wasteful use of resources
  • Breeding animals in reserve gene pools
  • Establishing gene banks
• What do all living organisms have in common?

  Characteristics evolved from a common ancestor
• How long has the process of evolution taken?

  Millions of years
• What provides evidence for evolution?

  Fossils
• What are fossils?

  Remains of plants or animals that died long ago
• What is natural selection?

  A way for certain characteristics to survive
• How do giraffes illustrate natural selection?

  Longer necks help them reach leaves
• Who developed the theory of evolution by natural selection?

  Charles Darwin
• What is peer review?

  Checking work by an expert for quality
• Where did Darwin observe finches with different beaks?

  Galapagos Islands
• Why did the finches have different beaks?

  They ate different foods
• What did Darwin notice about the claws of the finches?

  They had different shapes