🌳 How do scientists map out the evolutionary history of life? In this AP Biology lesson, we’ll explore phylogeny and learn how to read and interpret phylogenetic trees — the evolutionary “family trees” that connect all living things.
In this video, you’ll learn:
- What phylogeny is and why it matters 🧬
- How to read phylogenetic trees step by step 🌱
- Key terms: nodes, derived traits, clades, and sister species 🔑
- How time and ancestry are represented on trees ⏳
- Examples of…
This video is an introduction to the Ping Pong Catapult kit, available from our partner Home Science Tools®: https://www.homesciencetools.com/product/ping-pong-catapult-kit?aff=SB1.
Science Buddies has instructions for a classroom lesson plan that uses this kit: https://www.sciencebuddies.org/lesson-plans/ping-pong-catapult?ytid=pIEjwMhnAGo&ytsrc=description
As well as several different science projects that you can do at…
Learn how to the PING))) ultrasonic distance sensor from Parallax, also called a sonar sensor, with an Arduino to measure the distance to a target object. We have a separate video about the HC-SR04 ultrasonic sensor: https://youtu.be/n-gJ00GTsNg. See our complete playlist of Arduino tutorials here: https://youtube.com/playlist?list=PLlBVuTSjOrclb0iCMSRpS_H1lSrlSVeEm and the Science Buddies website for cool science projects you can do with an Arduino:…
Materials and instructions for each project are available on the Science Buddies website:
1. Strawberry DNA: https://www.sciencebuddies.org/science-fair-projects/project-ideas/BioChem_p015/biotechnology-techniques/strawberry-dna?ytid=a_HK_9rFBkw&ytsrc=description
2. Measure photosynthesis with floating leaves: https://www.sciencebuddies.org/science-fair-projects/project-ideas/PlantBio_p053/plant-biology/photosynthesis-leaf-disk-assay?ytid=a_HK_9rFBkw&ytsrc=description
3. Grow plants in…
Adventures through the Plant Kingdom- Part 4
Have you ever wanted to become an adventurer? In this virtual tour, you can join us as we explore the jungle found right at Cornell! We’ll explore the many different types of plants found there, and highlight the exciting, exotic, and important plants. You will see plants that make pretty flowers, a plant that doesn’t make roots, stems, or leaves, plants that make medicine, and plants that move! We will also learn how people study plants and learn…
Video from Science Buddies science fair project idea: "Popping an Ollie: How Skateboarders + Physics = A Really Cool Trick" https://www.sciencebuddies.org/science-fair-projects/project_ideas/Sports_p055.shtml?ytid=eHJoHLUV0aU&ytsrc=description
Science Buddies also hosts a library of instructions for over 1,500 other hands-on science projects, lesson plans, and fun activities for K-12 parents, students, and teachers! Visit us at https://www.sciencebuddies.org/?ytid=eHJoHLUV0aU&ytsrc=description…
Weave sticks into a chain and watch it go off in this fun STEM activity!
Tongue depressors are woven into a cobra weave in this video. You can also use large Popsicle sticks (the ones that are not too rigid) and/or choose other weave patterns.
The chain reaction also goes under the name Popsicle stick bomb or stick bomb.
Visit our website: https://www.sciencebuddies.org/stem-activities/popsicle-stick-chain-reaction?ytid=GTO3HDSjxOU&ytsrc=description for detailed instructions and the…
Make a simple rubber band-powered paddle boat with popsicle sticks in this fun STEM activity! Written instructions available on the Science Buddies website: https://www.sciencebuddies.org/stem-activities/rubber-band-paddle-boat?ytid=dhV3h-Hjpmk&ytsrc=description
Try making a similar boat with cardboard and duct tape instead: https://youtu.be/bwAuJWCy1S0
Or use balsa wood: https://youtu.be/POt4gDIKTkc
Science Buddies also hosts a library of instructions for over 1,500 other hands-on science…
This video shows how to build a simple robotic Arm using servo motors and an Arduino. Parts list, a circuit diagram, and example code are available on the Science Buddies website: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Robotics_p050/robotics/arduino-robotic-arm?ytid=2MOFAHGUGps&ytsrc=description
0:00 intro
0:12 physical construction
3:57 sensors
5:25 servo control with buttons
11:32 servo control with a potentiometer
You can find our Intro to Arduino playlist here:…
What's the difference between a positional and a continuous rotation servo motor? How do you control them with the Arduino servo library? Which one do you need for your project? Get all your questions answered in this video! For an example of a fun project that uses a continuous rotation servo motor, see this project on the Science Buddies website:…
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