Do you want to hear a joke about nitrogen and oxygen? NO. We all know there is oxygen in the air and that plants produce oxygen, but how was it discovered? Scholars read a handout, answer questions, and analyze material in the...

How does energy from the sun make plants grow? Scholars move step by step through the processes that promote plant propagation during a detailed lesson. The resource illustrates ADP production and hydrolysis, then allows learners to...

Here's a handy two-part worksheet that uses an article about plants to assess reading comprehension. After reading the passage, kids answer questions based on the information in the text.

For this plants worksheet, students solve a crossword puzzle. Students have a word bank to use and are given sentences as clues.

Introduce your class to another type of ecosystem, the taiga ecosystem, through a reading passage. Class members read the text and then respond to five reading questions about the content of the passage.

The questions here present situational problems and calculations to help your students understand the application of the math and data analysis practice.

An article about the vascular tissues inside plants provides an opportunity to assess reading comprehension. After reading the passage, kids respond to a series of comprehension questions.

With a few minor formatting changes, the plant parts and processes resource here would make a great study guide, quiz, or self assessment. Currently, it is a bit confusing, but changing some lettering to numbering would clear up any...

Here is an extremely simplistic look at food chains and webs. It depicts three different food chains, each containing a plant, plant eater, and meat-eater. Learners fill in the missing part of each chain by using the images provided at...

Young scientists discover that air is a mixture of different gases - mainly nitrogen and oxygen. The properties of some of the other gases found in oxygen are listed in a table, then learners must decide which one of those gases is...

Educate scholars on pollution—air, water, and land—with a series of lessons that begin with a thorough explanation of each type. Learners then take part in three activities to reinforce the importance of reducing pollution. They...

Is a deer an herbivore? What about a spider? Experiment with the food chain in an interactive science experiment. After listing the herbivores from a selection of animals, third and fourth graders compare the skulls and teeth of...

In this food chain worksheet, students review terms associated with food chains and food webs. Students also recall the water cycle.

In this photosynthesis worksheet, learners are given a diagram of photosynthesis and words that correlate with the process. They use the words to fill in the blanks about the process and the structures involved in photosynthesis.

In this photosynthesis and respiration worksheet, students will explore the function of the stomata on plant leaves Students will write the photosynthesis equation and label a diagram showing the movement of water, carbon dioxide, and...

Seventy percent of the air pollution in China is due to car exhaust. Under the umbrella of environmental chemistry, learners extensively explore air pollution. From the makeup of our atmosphere to sources of major air pollutants, classes...

What do brown bears in Alaska's Katmai National Park need to survive? Pupils explore the unique habitats, diet, and survival needs of this animal. They predict the consequences of removing any integral part of the bear's survival,...

In this fractions in chemistry worksheet, students solve 2 problems where they state all the answers as simple fractions or integers. They determine ratios of molecules in gasoline and they find ratio of molecules in the creation of...

A fabulous worksheet about trees awaits your students. They read a lengthy selection on the various parts of trees, then complete 13 fill-in-the-blank and matching questions about what they have read. An excellent reading comprehension...

For this biology worksheet, students read about the mechanism of photosynthesis to answer 43 short answer questions. They explain the role of chloroplasts in the process.

Review some simple life science terms using this short and simple crossword puzzle. Young scientists find 6 terms about photosynthesis and other life science topics using provided clues and then plug them into a crossword.

Cyanide, a coordination compound, is used in the extraction of gold and silver. Part 24 in the series of 36 delves into the world of coordination compounds. Classes learn, through readings, discussions, and answering questions, how to...

For this origin of life worksheet, students write answers to five questions. They describe characteristics of the first life forms and how scientists believe oxygen accumulated in the Earth's atmosphere.

In this photosynthesis worksheet, young scholars answer 18 questions in a combination of multiple choice and short answers including the completion of a table.