Search for clips

14 Search Results

Displaying results 1 - 10 of 14

  • Science with Sophie: What Are Scabs?

    scabs
    wound healing
    physiology
    fibrin
    platelet
    Sophie explains how scabs form and how wounds are healed. She uses an analogy involving beavers building a dam to describe how the human body repairs skin.

  • Science with Sophie: Dog Diversity

    benefits of genetic diversity
    genes
    genetic diversity
    Sophie tackles the question of why there are so many different breeds of dogs. She briefly discusses the history of dogs and discusses how genetics makes dogs different and why some breeds are better suited for certain functions.

  • Science with Sophie: Simple Machines

    6 simple machines
    work
    simple machines
    force
    wheel and axle
    screw
    wedge
    inclined plane
    lever
    pulley
    Sophie illustrates the six basic simple machines that exist and explains how they are useful in our everyday lives. She defines force and work and mentions that simple machines reduce the amount of work required for a task.

  • Science with Sophie: What is Food?

    nutrients
    micronutrients
    macronutrients
    Sophie explains why we eat food: to ingest chemicals such as nutrients. She dissects a salad to illustrate the different types of nutrients our body needs: carbohydrates, proteins, and fats. She provides an example of each type of nutrient.

  • Science with Sophie: Why Do We Cry?

    tear production
    physiology
    emotional tears
    reflex tears
    basal tears
    lacrimal gland
    Sophie explains the purpose of tears and discusses the different types of tears that we produce. She also discusses why onions cause us to tear up.