TY - BOOK AU - Rees ,Peter TI - Why Do Swings Swing?: and other questions about forces T2 - Cambridge Young readers SN - 9780521137201 U1 - 153 REE PY - 2010/// CY - United Kingdom PB - Cambridge University Press KW - Sciences KW - English language N1 - Contents, Quiz, Glossary.; - Questions about movement - More questions about movement - It’s a fact - Can you believe it ? - Who found out ? - It’s quiz time ! - Glossary ; A1 Level4 N2 - Why do swings swing? Why do swings stop swinging? What makes things change direction? You can find the answers to these and other questions about movement in Why Do Swings Swing? UR - www.cambridge.org/elt/youngreaders ER -