Explain the body’s defenses against infectious diseases. Identify the causes of infectious disease. Explain how infectious diseases are spread. List at least 3 ways that infectious diseases can be prevented. PowerPoint presentation + Traffic Light Game 1- Cut cards. 2- Make groups. 3- Answer. 4- Paste cards and make your traffic light.

Basic science skills training CD Download Unzip Run

Students can test themselves and get the result.

REACTIONS OF THE GROUP 1 ELEMENTS WITH WATER " Periodic Table" All the alkali metals react vigorously with cold water. In each reaction, hydrogen gases given off and the metal hydroxide is produced. The speed and violence of the reaction increases as you go down the group. This shows that the reactivity of the alkali metals increases as you go down Group 1. How does Sodium React with Water? Sodium melts and forms a floating ball of metal which fizzes .as it moves over the surface of the water giving off hydrogen gas How does Potassium React with Water? Potassium is the most reactive. It melts, reacts vigorously and burns with a lilac flame as it gives off hydrogen gas. Potassium is dangerous and can explode when it comes into contact with water. مشروع الطالب الالكتروني

This is a short crossword puzzle that can help students practice the vocabulary of plant and animal cells. http://www.abubakrshalaby.com/crossword/cell/cwf_live.swf

Online quiz Please Visit http://www.abubakrshalaby.com/quiz2015/1/quiz.html Baseline Test for Grades 7 and 8 Your students will receive complete report in their emails This report shows " user' response " and " correct answer"

This video tries to find answers to some questions: Are we destroying our environment? What is an ecosystem? What are some human activities that destroy the environment? What is poaching? How does poaching affect the environment? Which organisms does it hurt?

This would be a nice video to share with students to introduce the concept of Nuclear Fission and Nuclear Fusion. An intro activity or explanation to get students attention.

Chemical reaction rates " Worksheet"

Worksheet + tutorial video Provides information about COVID-19, how to treat the disease, and ways to prevent it.

**Types of Clouds: **Learning Objectives: At the end of this lesson, students will be able to: • Define clouds • Describe the steps in cloud formation • Identify different types of clouds