Interactive
Cold Spring Harbor Laboratory

RNA Was the First Genetic Molecule

For Students 9th - 12th Standards
Can organic molecules come from a pre-biotic environment? Stanley Lloyd Miller proved it is possible when exactly the right conditions exist. Learn about his experiment and the other experiments later building off of it that changed the...
Interactive
Cold Spring Harbor Laboratory

Some Viruses Store Genetic Information in RNA

For Students 9th - 12th Standards
Can a high school program alter the entire course of your life? David Baltimore and Howard Temin participated in high school programs working in research laboratories and went on to win the 1975 Nobel Prize. Learn about these two...
Activity
Howard Hughes Medical Institute

Weighing the Evidence for a Mass Extinction Part 2: On Land

For Teachers 6th - 12th Standards
What can fossils tell us about periods of extinction? Young scholars interpret fossil layers to make conclusions about changes in life during different geological time periods. They analyze the fossils for abundance and diversity as well...
Interactive
Cold Spring Harbor Laboratory

DNA Is Only the Beginning for Understanding the Human Genome

For Students 9th - 12th Standards
Mario Capecchi requested funding for a new procedure targeting genes and was rejected. Four years later, after he proved it worked, the NIH apologized and funded his research. Use an online interactive to learn about his research and the...
Interactive
Cold Spring Harbor Laboratory

Master Genes Control Basic Body Plans

For Students 9th - 12th Standards
Have you ever been so tired you missed a major announcement? Eric Wieschaus woke to a call explaining he won the Nobel Prize, but he thought it was just a dream until Christiane Nusslein-Volhard, a co-winner, explained it to him later...
Interactive
Cold Spring Harbor Laboratory

DNA Responds to Signals from Outside the Cell

For Students 9th - 12th Standards
How do cells know when to replicate, transcribe, and stop? James E. Darnell, Jr. shifted from studying medicine to biochemistry and decided to address this mystery. Learn about his research, discoveries, and the impact on future medical...
Interactive
Cold Spring Harbor Laboratory

Higher Cells Incorporate an Ancient Chromosome

For Students 9th - 12th Standards
Chromosomes contain keys to history including links from royalty to Neanderthals. Young scientists learn about Ivan Wallin's research into chromosomes with an animation and videos. Then, the concept connects to mysteries related to...
Interactive
Cold Spring Harbor Laboratory

Mutations Are Changes in Genetic Information

For Students 9th - 12th Standards
A red delicious apple tree with a simple mutation means we now benefit from the existence of golden delicious apples. Learn how simple mutations change genetic information in DNA sequences. Using biographies, videos, and animations,...
Interactive
Cold Spring Harbor Laboratory

The RNA Message Is Sometimes Edited

For Students 9th - 12th Standards
In 1993, Phillip Sharp and Richard Roberts won the Nobel Prize for their discovery of split gene theory. Learn about the breakthrough with the help of an online interactive. Hear both scientists explain it in their own words, watch an...
AP Test Prep
College Board

2014 AP® Environmental Science Free-Response Questions

For Students 10th - 12th Standards
Less than half of AP Environmental Science test takers pass each year. The College Board releases previous test questions covering topics from greenhouse gases to ecological succession to help scholars prepare for future assessments. Use...
AP Test Prep
College Board

2015 AP® Environmental Science Free-Response Questions

For Students 10th - 12th Standards
Less than eight percent of AP Environmental Science test takers earn the highest score possible. Help scholars improve their scores by using actual test questions on water quality and urban planning before reading sample responses that...
AP Test Prep
College Board

2016 AP® Environmental Science Free-Response Questions

For Students 10th - 12th Standards
The average student scores less than three points, out of five, on the AP Environmental Science test. Most do well on the multiple choice and struggle with the free-response section. Encourage extra free-response practice with actual...
AP Test Prep
College Board

2017 AP® Environmental Science Free-Response Questions

For Students 10th - 12th Standards
Almost half of test takers passed the AP Environmental Science exam in 2017. Use the free-response questions on the topics of pollution and ecosystems to improve writing skills in preparation for the AP exam. Discuss the scoring...
AP Test Prep
College Board

2018 AP® Environmental Science Free-Response Questions

For Students 10th - 12th Standards
Less than nine percent of all AP Environmental Science test takers scored a perfect five on the exam in 2018. Learn from the best answers as well as the common mistakes thanks to the College Board. Four questions from the test covering...
AP Test Prep
College Board

2014 AP® Chemistry Free-Response Questions

For Students 10th - 12th Standards
More than half of AP Chemistry test takers earn a high enough score to get college credit. Improve that statistic by using past test questions including precipitate, molarity, and chemical equations to prepare for a future exam. The...
AP Test Prep
College Board

2015 AP® Chemistry Free-Response Questions

For Students 10th - 12th Standards
More than 80,000 scholars earned college credit for Chemistry with the AP exam in 2015. The College Board released the free-response questions covering topics, including moles, that often confuse scholars. They also released example...
AP Test Prep
College Board

2016 AP® Chemistry Free-Response Questions

For Students 10th - 12th Standards
The College Board published the mean score on the 2016 AP Chemistry exam as a 2.69, but a minimum of a three is required to earn college credit. Help pupils study for the upcoming exam with actual test questions, sample answers, and...
AP Test Prep
College Board

2017 AP® Chemistry Free-Response Questions

For Students 10th - 12th Standards
More than 83,000 scholars earned college credit, thus saving time and money by passing the AP Chemistry exam in 2017. Use the exact test questions covering concepts from activation energy to solubility to prepare for the upcoming...
AP Test Prep
College Board

2018 AP® Chemistry Free-Response Questions

For Students 10th - 12th Standards
2018 saw some of the highest AP Chemistry scores in years. The College Board released each test question covering topics from enthalpy to net ionic equations, as well as scoring guidelines and more to benefit future scientists. Example...
AP Test Prep
College Board

2014 AP® Biology Free-Response Questions

For Students 10th - 12th Standards
The most popular AP science exam, Biology, also maintains the highest passing rate. The College Board releases old test questions covering trichomes and much more, along with statistics and scoring guidelines to help scholars study for...
AP Test Prep
College Board

2015 AP® Biology Free-Response Questions

For Students 10th - 12th Standards
Many future doctors earn college science credit by passing the AP biology test while still in high school. Help young scientists prepare for the exam by studying past test questions. Each of the eight questions covers multiple topics...
AP Test Prep
College Board

2016 AP® Biology Free-Response Questions

For Students 10th - 12th Standards
A remarkably high number of scholars passed the AP Biology exam in 2016 with over 61 percent earning college credit. The College Board released the entire free-response section for future scholars to study. After answering the eight...
AP Test Prep
College Board

2017 AP® Biology Free-Response Questions

For Students 10th - 12th Standards
With AP Biology remaining the most popular AP science exam, many teachers need help preparing. The College Board offers the actual free-response questions from the 2017 test covering pollination, germination, and more. Scholars learn the...
AP Test Prep
College Board

2018 AP® Biology Free-Response Questions

For Students 10th - 12th Standards
The average AP Biology score dropped in 2018 with the addition of more data tables and graphs. Offer additional practice free-response questions by using the questions from the 2018 AP exam covering phylogenetic trees, cell structure and...