Students cut an apple in half and cover half with plastic wrap. They place drops of liquid on each half and discover how our skin protects us. They answer discussion questions to end the lesson.

In this flowering plant worksheet, students will review vocabulary words associated with the life cycle of flowering plants. This worksheet has 7 matching and 3 short answer questions.

In this non-seed vascular plant worksheet, students review the characteristics of sporophytes, lycophytes, sphenophytes, and pterophytes. This worksheet has 19 fill in the blank, 4 true or false, and 2 short answer questions.

For this nonvascular plant worksheet, students compare the characteristics of bryophyta, hepatophyta, and anthocerophyta. This worksheet has 8 fill in the blank and 3 multiple choice questions.

In this bones worksheet, students compare the axial and the appendicular skeletons. Students also review the bone components. This worksheet has 6 matching, 8 short answer, 4 fill in the blank, and 6 true or false questions.

In this plant life cycle worksheet, students compare the life cycles of mosses, ferns, and conifers. This worksheet has 15 fill in the blank and 10 short answer questions.

In this plant worksheet, students review the different characteristics of ferns and gymnosperms. This worksheet has 12 fill in the blank questions.

This is a fabulous presentation which should reinforce all aspects of muscle construction on a gross anatomical and micro level. There are slides to help understanding with the muscle fiber anatomy, and many labelled diagrams to...

A slideshow that covers the all-important details related to basic human circulation. The reasoning for exchange of material methods is presented and then labeled diagrams of the main human transfer systems are shown, along with...

Many types of cancer treatments now depend on nanotechnology—a big "little" discovery. Scholars begin by removing "malignant" tissue from simulated brains, one using fluorescent markers thanks to nanotechnology and one without. This...

A fantastic presentation with great images should improve student understanding of lipids and their involvement in the body.  The chemistry of different fats, phospholipids, and steroids are explained. Additionally, the specific...

More extensive than just a general overview of digestion and reactions, this slide show gives information about all areas of enzyme function.  Topics like the chemistry behind efficiency of enzymes, factors that affect speed of...

Quite a detailed and advanced look at the transport mechanisms of a plant. The absorption and control of sugar and water concentration are explained and will help an understanding of homeostasis concepts and organ specialization.

Students examine organisms that are composed of tissues, organs, and systems. They dissect a fetal pig and explore the assigned organs systems such as the skeletal, muscular, and circulatory organs. Students identify and explain their...

DNA carries the codes for creating just the right protein. A well-designed activity leads pupils through the process from start to finish and everywhere in between. Guiding questions with supporting video help scholars understand the...

Beginning biologists place a drop of food coloring into water of differing temperatures to observe the effect on the diffusion rate. They remove the shells from raw eggs and then experiment with osmosis over the remaining membranes....

High Schoolers complete a variety of activities as they examine the ethics of (and take a position concerning) genetically modified organisms in the field of agriculture. They complete a PowerPoint demonstration to go along with the unit.

A tube worm's outer covering is made of chitin, the same material that makes up the shells of lobsters and crabs. Scholars create tube worms and analyze and discuss the longevity of organisms living near cold seeps. They then discuss and...

Research how DNA, the genetic blueprint of living organisms, plays an essential role in the continuity of life. High schoolers will summarize how their influence may very well effect the destiny of the population from one generation to...

Now you have a new excuse not to do your homework. A long-term experiment has learners explore cellulose-digesting enzymes. They simulate how paper breaks down in a compost bin. There's no need to blame your dog for eating your homework...

Students are introduced to DNA microarrays. They discuss how scientists and doctors use them and how they work. They complete a worksheet and discuss their findings.

Students investigate techniques involved in extracting and isolating DNA. Students extract and observe onion DNA.

Pupils, working in cooperative groups, extract very impure samples of DNA from a number of tissue samples. They determine how the samples can be preserved and how they are similar.

In this history of life worksheet, students review 4 vocabulary words associated with the beginnings of life. Students place these terms into a crossword puzzle and then complete 2 fill in the blank questions.