Ground-truthing ... is it even a word? The last installment of a five-part series analyzes how scientists collect sea surface temperature data. Scholars use government websites to compare temperature data collected directly from buoys...

Global warming — what a hot topic! A thorough unit challenges learners to research, read, explore, and write about carbon, its role and increasing nature in our atmosphere, and how global warming is affecting lives and environments...

Spread the word about seafloor spreading! Junior geologists prove Albert Wegener right in an activity that combines data analysis and deep ocean exploration. Learners analyze and graph fossil sample data taken from sites along the...

In this chemistry activity, students complete a crossword puzzle by rearranging 13 anagrams about elements. They create their own anagrams from 3 given words.

How do scientists know they're right? Truth be told, they don't always know. Explore the scientific process using mystery tubes in an insightful activity. Young scientists discover how to approach and solve problems in science, how ideas...

Get things moving with this extensive collection of physical science resources. Covering the fundamentals of measurement, graphing, lab safety, and experimental design as well as the specific scientific concepts...

In this circuit worksheet students complete a series of short answer questions using circuit diagrams to show the input and output of different switches. 

In this electrical circuit worksheet, learners answer a series of 17 questions using a Karnaugh map to generate a Boolean expression, and identify logic gates and functions. This worksheet is printable and the answers are available on-line.

In this electrical circuit learning exercise, students answer a series of 21 questions about sum of product and product of sum, and Boolean expression for a logic circuit. They design and build a circuit board using  PC-board relays...

In this electronics learning exercise, students construct 43 circuits based on the schematic diagrams. They compare prediction with actual measurements.

Students explore crystals through the story Snowflake Bentley and then create crystal pictures of their own. In this interdisciplinary lesson, they create a crystal web chart on chart paper, design artificial snowflakes, and write poems...

Students assess how to construct all possible circuits out of Nand gates. They divide into groups and are given a set of manipulatives to organize and explain the operation of a Nand gate. Each group recognizes the need to construct...

Sixth graders evaluate the nutrition of various foods. In this healthy eating lesson, 6th graders discuss the processing of many common foods and what this means. Students identify and research unfamiliar ingredients in processed foods...

In this saving energy worksheet, students compare and contrast the effectiveness of compact fluorescent lighting, incandescent light bulbs, and light emitting diodes.

Students simulate some of the Pathfinder experiments by devising methods of collecting and measuring magnetic substances in pseudo-Martian soil. The efficiency of each of the methods used to collect materials is evaluated in this...

Lesson plan investigation into types of salts used to season foods and in recipes asks students to consider and whether advertisers' claims about their salt products are truthful.