Six pages begin with a detailed introduction to meiosis and homologous chromosome pairs. Instructions guide learners through a simulation in which they draw craft sticks marked with autosomes in order to decode the genes inherited by...

Take your advanced biology learners across the great divide: where cells divide, that is! Although it was created as a chapter reading guide, having your class complete this activity is not only appropriate, but also highly valuable in...

In this meiosis worksheet, students read about the phases of meiosis I and meiosis II and simulate the chromosomes and chromatids in each phase. Students draw the changes in each phase and produce 4 cells with half the DNA in the end.

Students plant seeds in order to investigate and explore the questions: "How do seed companies develop varieties of plants?" and "What is the ideal plant?" Students will study related vocabulary and sketch seeds as they emerge. Students...

In this meiosis worksheet, student complete the blanks describing the process of meiosis. Students draw a diagram of homologous chromosomes.

For this biology worksheet, 9th graders create one chromosome using a red plasticine and another using blue plasticine. Then they illustrate different ways of crossing over, including double crossovers. Students also explain genetic...

In this biology activity, students identify and describe a number of easily observable genetic traits and compare the traits they have with other students. Then they identify and describe that some traits are common while others are not...

Young biologists define reproduction vocabulary terms, answer critical-thinking questions, label a diagram of the human life cycle, and complete a chart comparing mitosis to meiosis. This is a well-balanced worksheet. Even though it...

In this chromosomes learning exercise, students understand the make up of a DNA molecule and compare the different ways chromosomes are connected. This learning exercise has 35 fill in the blank questions and 6 drawings.

For this meiosis worksheet, students fill in the blank that describes the process of meiosis. Students also draw the process of meiosis.

In this DNA: structure and replication worksheet, learners fill in the blanks about the structure of DNA and replication of DNA. Students sketch several diagrams of DNA at different stages.

In this biology worksheet, 9th graders label the diagrams with the appropriate phase of mitosis illustrated. Then they explain why skin cell undergo mitosis continuously. Students also explain why mitosis is a form of asexual reproduction.

In this biology worksheet, 9th graders create a Punnett square to show the possible offspring of a carrier female and a normal male for color blindness. Then they draw a pedigree for the family and indicate whether the daughter is...

In this cell cycle worksheet, students fill in the blank with information about the cycle of a cell. Students sketch several drawings of different phases in the cell cycle.

In this cloning worksheet, students fill in the blank with information researched about cloning. Students draw a labeled sketch and complete statements for each step of cloning displayed in the noted text.

Students study the Human Genome Project and participate in a debate about the project. In this genome lesson, students review the terms related to the genome project, take a poll about the ethical issues of the project, and watch a video...

Students interact with a video to explore the basis for the science of chromosomes. They perform a chromosomal analysis called a karyotype and explore how seemingly minute errors in chromosomes can lead to devastating illnesses.

Students develop understanding of DNA by modeling the process of DNA extraction. They study DNA, genes and chromosomes. After the basic information, students do an experiment in which they separate out DNA from peas.

Compare and contrast eukaryotes, prokaryotes, and viruses with a chart and a Venn diagram. Beginning microbiologists consider motility, reproductive ability, DNA content, and the presence of organelles. They write short answers to...

Practice thirty-three different consonant blends, digraphs, and trigraphs with your emergent readers! Each letter combination has its own column in which you and your learners can write down five different words that demonstrate the...

Students explore the concept of extinction by studying dinosaurs. In this dinosaur instructional activity, students distinguish between extinct creatures and those that still exist.

In this online interactive English vocabulary skills activity, high schoolers answer 10 matching questions which require them to fill in the blanks in 10 sentences. Students may submit their answers to be scored.

This is a learning exercise where students can review the different parts of an animal cell by coloring in the various sections.

Young scholars develop an understanding of how innate and learned behaviors and the environment determine behavior. They see how a variety of factors affects our pet's behavior-including species-specific traits, the environment,...