TY - BOOK AU - O'Callaghan, Jonathan TI - Basher stem junior science SN - 978-0-7534-4512-9 AV - M 507 Oc16 2020 U1 - M 507 PY - 2020/// CY - London PB - Kingfisher KW - STEM education KW - Juvenile literature KW - Science N1 - Includes index ER -