1. Musical instruments: Page 42 QUESTION: What groups of instruments make up an orchestra? OBJECTIVE: Students will be able to explain how musical instruments are able to change their loudness and pitch. VOCABULARY:music

2. Musical Instruments Write these questions onto page 42 SKIP TWO LINES BETWEEN EACH QUESTION 1.What are the three groups of musical instruments? 2.Name three instruments in each group? 3.Which group is made up of two subgroups? 4.How do musicians change the loudness? 5.How do musicians change the pitch of each group of instruments?

3. Making Music Music is a set of pleasing sounds. Sound can only be made when something vibrates. Musical instruments are used to make music.

4. Musical instruments are divided into three basic groups. Stringed Instruments The pitch is changed by changing the length of the string. The loudness is changed by the energy applied to the strings. One group is the stringed instruments.stringed instruments The strings of these instruments are vibrated by either strumming them by hand or rubbing them with a bow.

5. Wind Instruments The pitch is changed by changing the length the air is traveling. The loudness is changed by the energy applied by the air. Another group is the wind instruments. These instruments are vibrated by forcing air though them. Wind instruments are divided into two subgroups. The woodwindswoodwinds and the brass.brass

6. Percussion Instruments The pitch is changed by changing by the size of the instrument. The loudness is changed by the energy used to hit the instrument. The last group is the percussion instruments.percussion instruments These instruments are vibrated by striking them.

7. Musical Instruments: Review p. 42 Check that the answers to these questions are in your notes. 1.What are the three groups of musical instruments? 2.Name three instruments in each group? 3.Which group is made up of two subgroups? 4.How do musicians change the loudness? 5.How do musicians change the pitch of each group of instruments?

8. VOCABULARY Music- a set of pleasing sounds.