DASHlink is a virtual laboratory for scientists and engineers to disseminate results …
DASHlink is a virtual laboratory for scientists and engineers to disseminate results and collaborate on research problems in health management technologies for aeronautics systems. Managed by the Integrated Vehicle Health Management project within NASA's Aviation Safety program, the Web site is designed to be a resource for anyone interested in data mining, IVHM, aeronautics and NASA.
The DISCOVER-AQ curriculum integrates real-word research with real-life learning to answer the …
The DISCOVER-AQ curriculum integrates real-word research with real-life learning to answer the question: What are the causes and effects of air quality issues and how do they affect human health and the environment?
In this activity, students extract DNA from Archaea or from their cheek …
In this activity, students extract DNA from Archaea or from their cheek cells. Students learn key concepts about DNA function during the intervals required for the extraction procedure. Student understanding of DNA structure, function and replication is further developed by additional analysis and discussion questions and hands-on modeling of DNA replication. This activity helps students meet the Next Generation Science Standards.
Learn about DNA. Deoxyribonucleic acid is the blueprint for all living things, …
Learn about DNA. Deoxyribonucleic acid is the blueprint for all living things, but it is so small we can’t usually see it. The role of DNA is to provide our cells information on building proteins; these proteins lead to our individual traits such as eye color, height, dimples, and so much more. The structure of DNA is a double helix and we can model this structure at home. This model is based on the work of Rosalind Franklin, a British Chemist who created an X-ray photograph that provided evidence of the double-helix structure of DNA molecules. We can also extract DNA from a living thing, such as a strawberry, at home. The components of this DNA are so small that it does not look like our model; however, with technology scientists can both see the structure and manipulate the structure to change proteins in organisms. The key concepts and terms explored in this episode include DNA, nucleotides, genes, and genetically modified organisms (GMO's).
This analysis and discussion activity can be used to introduce your students …
This analysis and discussion activity can be used to introduce your students to key concepts about DNA structure, function and replication or to review these topics. This activity includes hands-on modeling of DNA replication.
Explore the relationship between the genetic code on the DNA strand and …
Explore the relationship between the genetic code on the DNA strand and the resulting protein and rudimentary shape it forms. Through models of transcription and translation, you will discover this relationship and the resilience to mutations built into our genetic code. Start by exploring DNA's double helix with an interactive 3D model. Highlight base pairs, look at one or both strands, and turn hydrogen bonds on or off. Next, watch an animation of transcription, which creates RNA from DNA, and translation, which 'reads' the RNA codons to create a protein.
Explore the relationship between the genetic code on the DNA strand and …
Explore the relationship between the genetic code on the DNA strand and the resulting protein and rudimentary shape it forms. Through models of transcription and translation, you will discover this relationship and the resilience to mutations built into our genetic code. Start by exploring DNA's double helix with an interactive 3D model. Highlight base pairs, look at one or both strands, and turn hydrogen bonds on or off. Next, watch an animation of transcription, which creates RNA from DNA, and translation, which reads the RNA codons to create a protein. Finally, make mutations to DNA and see the effects on the proteins that result. Learn why some mutations change the resulting protein while other mutations are "silent."
Science Instructional Plans (SIPs) help teachers align instruction with the Science Standards of …
Science Instructional Plans (SIPs) help teachers align instruction with the Science Standards of Learning (SOL) by providing examples of how the content and the scientific and engineering practices found in the SOL and curriculum framework can be presented to students in the classroom.
Friction is the amount of force or resistance acting on an object. …
Friction is the amount of force or resistance acting on an object. Without friction driving or riding in vehicles would look extremely different and practically impossible. Scientists and engineers alike must collect data and information to draw conclusions after much analysis to determine the rate of friction acting on objects. In this activity students will collect and analyze data using excel sheets and create a line graph using the provided excel or google sheets program.
During the last sunspot cycle between 1996-2008, over 21,000 flares and 13,000 …
During the last sunspot cycle between 1996-2008, over 21,000 flares and 13,000 clouds of plasma exploded from the Sun's magnetically active surface. These events create space weather. Students will learn more about space weather and how it affects Earth through reading a NASA press release and viewing a NASA eClips video segment. Then students will explore the statistics of various types of space weather storms by determining the mean, median and mode of a sample of storm events. This activity is part of the Space Math multimedia modules that integrate NASA press releases, NASA archival video, and mathematics problems targeted at specific math standards commonly encountered in middle school textbooks. The modules cover specific math topics at multiple levels of difficulty with real-world data and use the 5E instructional sequence.
In this lesson, students will learn how to balance chemical equations. They …
In this lesson, students will learn how to balance chemical equations. They will also learn how to debug computer programs. By the end of the lesson, students will be able to see the similarities between these two processes and how they can be used to solve problems.
In this lesson, students are going to debug algorithms that list steps …
In this lesson, students are going to debug algorithms that list steps of how habitats change over time due to natural and human resources. Students will need to think critically about the order of steps that occur when habitats change over time.
In this sequence of lessons, students explore the deer mouse and its …
In this sequence of lessons, students explore the deer mouse and its fur color and how it has evolved over time in different habitats. Students engage in the practices of science using a series of interactive computer simulations to create model(s) of evolutionary change across levels of biological organization, from molecules and cells to organisms and populations. NOTE: This sequence is designed specifically for use on touchscreen devices.
The goal of this activity is to demystify the science behind Punnett …
The goal of this activity is to demystify the science behind Punnett Squares and explore data and statistical representations in genetics and heredity. Begin by breeding two parent mice and observe the ratios in the pie chart as more offspring are bred in each litter. Compare the ratios between different pairs of parents and identify how they are different or similar. Finally, use the simulation controls to show gametes and reveal how each offspring obtained its genotype from its parents.
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