What do you want to be when you grow up? There are many important jobs that grownups do to keep our world running smoothly. Whether doctors, teachers, builders, engineers, farmers, etc, everyone learns a specific skill which they can then use to help everyone else. In singular-celled lifeforms, one cell has the ability to […]
Who’s cells are bigger, a newborn infant’s or that baby’s parents’? You might think that the parents have larger cells, because their bodies are bigger. But the truth is, that both the infant and its parents have cells that are pretty much the same size. However, the parents have a lot more cells. As […]
Today scientists have developed what we call the Cell Theory. This theory states the following: All living things are made of cells. Cells are the basic units of structure and function in living things. Living cells come only from other living cells. Fasten your seatbelts. You are about to see a world that is all around […]
The Discovery of Cells You are very fortunate to have been born when you were. Throughout most of human history, scientists knew very little about life and how it works. It was not until 1665 that a scientist by the name of Robert Hooke first discovered the existence of cells. While using the newly invented […]
You are a member of a very large and complex world. Together with other members of your family, you work to do jobs, like clean your home, set the table, make dinner, and many other important chores. Your family in turn works with other families to do important work. These cooperative efforts might include a […]
What do you need to live comfortably? The list probably includes food, a home, clothes, and water. Other needs might include love, an education, friends, enough space to play, and many other things. If you have pets, what do they need to live a comfortable life? Probably many of the same things, food, shelter, water, […]
Look around you. What do you see? A classmate, a brother or sister? Look out the window, or go for a walk. You will see trees, grass, plants, dogs, cats, bugs, and many other forms of life. Now, think about this. Life extends much further than what you can see. Everywhere around you, all over […]
You and your friends live in a variety of places, some in apartments, others in homes, trailers, cabins, condos and many other places. All around you both inside and outside there are other life forms. These life forms live in caves, trees, under rocks, in ponds and puddles, in your fish tank, on your countertops, […]
RADIO Radio telescopes detect noise from radio wavelengths in space. It turns out that objects in space give off radio noise. These telescopes are able to listen to all this noise and process it into information for researchers to study. A radio telescope can produce a picture from an object it is listening to […]
Here is a look at some of the major milestones in the advancement of telescopes through the last four centuries. The 1600s 1608 — Hans Lippershey, a German-Dutch lensmaker once said that he wanted to make an instrument “for seeing things far away as they were nearby.” He was the first person to ever think […]
