Susan’s Used Books ~ 50% off individual books or “Fill a Bag” online up to $200 for only $50 (70-80% discount) with coupon code: BOOKBAG50 Copy Code
BOOKBAG50
1 in stock
Sound is created through vibrations that vary in pitch and volume. This creates sound-waves that you can hear. Includes experiments.
Sign up to receive Thursday Notes, or emails showing books that have just been added to the website.
Check your inbox or spam folder to confirm your subscription.
Your cart is currently empty!
Notifications