This worksheet contains a link of a tutorial video about Density. Students should watch the video and then answer all of the questions provided in the sheet. Teaching Tips: An activity sheet on Density Teachers can play the video in the classroom. Students will answer the questions in the worksheet using the information in the video.

This worksheet contains a link of a tutorial video about Separating Mixtures. Students should watch the video and then answer all of the questions provided in the sheet. Teaching Tips: An activity sheet on Separating Mixtures Teachers can play the video in the classroom. Students will answer the questions in the worksheet using the information in the video.

Now, Your students can evaluate themselves and get the result. An interactive quiz with 40 questions cover all skills in " periodic table " lesson. This is an executable file format "exe" run as flash file.

By this game students can learn how to identify the elements according their Atomic number and Mass number. How to use this activity in classroom: 1- Print. 2- Cut cards. 3- Put cards inside envelopes. 4- One envelope for one group of students. 5- Students try to put cards in sequence. Available in 4 different colors.

1- Cut cards. 2- Make groups. 3- Answer. 4- Paste cards and build your pyramid.

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

Chemical reaction rates " Worksheet"