The Science Literacy Bundle 3 consists of eleven (11) Readers with Lexile scores 440L-470L. Reading level Grades 2 - 3.
 
In The Cell: A Tiny City young readers begin to explore the biology of the cell. Students learn that cells are made of special molecules, like protein and DNA. Proteins are molecules that do all of the work inside cells. DNA is a double strand of atoms linked together that has a code that tells cells what to do. Proteins and DNA work together to make the cell function. (students should be familiar with Chemistry Readers, Proteins and DNA)
 
In Microscopes, young readers are introduced to an important scientific instrument--the microscope. A microscope can magnify objects that are too small to be seen with the eyes alone. A light microscope is described and pictured. Other types of microscopes can be used to see smaller things, even atoms. Some microscopic images are included.
 
In Acids and Bases, young readers learn that acids and bases have different properties because they are made of different molecules. Acids have an “H” group in their molecules and bases have an “OH” group.
 
Bats are the only mammal that flies. During the day they sleep upside down in protected places. At night some fly around to eat bugs; others eat fruit and nectar. Bats help control insect populations, pollinate plants, and spread seeds.
 
In Mushrooms, Molds, and Bread Bugs!, young readers learn about mushrooms, molds, and yeast—fungi. Some are edible, some poisonous, and they come in different sizes. They do not make their own food but eat dead plants and animals, breaking them down into atoms and molecules which are left in the soil for plants to use.
 
In Protozoa, young readers learn about microscopic called protozoa. Students learn about how Euglena move by twirling a long tail called a flagellum and can use sunlight to make their own food. Students also learn how Paramecia swim and gather food using tiny hairs called cilia and Amoebas crawl and eat using “false feet.”
 
Worms are animals with long bodies and no legs. They live on land, in the ocean, and in other animals. There are segmented worms, roundworms, and flatworms. Worms change dead organisms into nutrients for plants and are food for other animals.
 
In Molecules, young children explore molecules, a basic concept in chemistry. Everything is made of atoms that join together, using linking electrons to make molecules.
 
In Plants, young readers discover that plants grow almost everywhere. Stems, leaves, roots, flowers, fruit, and seeds are described along with their functions. The plant life cycle is pictured and described. Wind, bugs, and animals move seeds to different places.
 
In Atoms and Molecules Meet, young children are introduced to the science of chemical reactions– when atoms and molecules bond to make more molecules, or molecules break apart.
 
In Work, young readers are introduced to work—a basic concept in physics. Work happens when a force moves an object. Force is any action that changes the location, shape, or speed of an object. Examples are given to show how work, force, and distance are related.
 
In Bacteria and Archaea, young readers learn about the biology of bacteria and archaea, organisms too small to be seen with only the eyes. Students learn that bacteria are shaped like rods, spheres, or spirals and live alone or in colonies, and archaea come in different shapes and can live in very hot or very salty places.