Galileo’s Pump Problem
Galileo’s Pump Problem A duke living in Tuscany, Italy, in the 17th century installed a well in the courtyard of the palace. But, the duke saw the pump fail to pull water up. The Duke asked … more
Period of Physical Pendulum
A pendulum that vibrates is one of a ‘simple pendulum’ or ‘physical pendulum.’ A simple pendulum is a case in which an object’s angular motion can be ignored, such as a small object suspended from a … more
Test Cross (to get Pure Breed)
Find out how Mendel gets a Pure Breed. Press the button to ban a specific trait.
ABO Blood Type
What determines a person’s blood type? You can click on the button to mate several traits. Find the gene delivery process by dragging the screen.
Mendel`s Law of Heredity
Find the gene delivery process by dragging the screen. Estimate the proportion of phenotypes appearing in offspring.
Dihybrid Cross
Explore the process that takes place when the pea plant with two different alleles. In Mendel’s genetic experiments, he observed this pattern: The inheritance of one characteristic did not influence other characteristics’ inheritance. For example, the … more
Differentiation 2
Differentiation The differentiation is to find the amount of change at a point on a graph f(x). This is like the process of finding the slope of the tangent line when you can draw a tangent … more
Inverted Image of Microscope
Move the preparation. Why does the image move in the opposite direction? Depending on the type of microscope, how is the direction of movement different? * Cell image source: https://www4.uwsp.edu/biology/Courses/BotLab/default.htm
Why do we see only one side of the moon?
Why do we always see the same side of the moon? The moon’s rate of rotation and rate of revolution is the same.
Apparent Motion of Venus
All planets in the Solar System revolve around the Sun in a counterclockwise direction when one views them from the celestial sphere’s north pole. Mercury and Venus are inner planets in the Solar System. They are … more
Parallel Circuit
Parallel Circuit is a closed circuit in which the current follows more than one pathway. In a parallel circuit, if one bulb breaks, the bulbs in the other branch stay on. In a parallel circuit, the … more