Thomas Jefferson National Accelerator Facility
Jefferson Lab: Reading Passage: Properties and Changes
Read and fill in the blanks of this passage properties and changes. Each blank has a dropdown menu with choices. When you finish, click CHECK MY ANSWERS. If you pick a wrong answer, the right answer will be displayed along with your choice.
Science Education Resource Center at Carleton College
Serc: Investigating Plastic Polymers: Building a Model
Learners will use their prior knowledge about changes of matter including physical and chemical changes from the Houghton Mifflin science curriculum. Students will create a hypothesis to test the physical properties of materials such as...
Sophia Learning
Sophia: Conservation of Mass: Lesson 2
This lesson explains the law of conservation of mass within chemical reaction with audio and quiz questions.