Tài liệu Cambridge primary science 3 learner book

lntroduction Looking ofter plonts l.l Plonts ond their ports 1.2 Plonts need light ond woter -l.3 Tronsporting woter 1.4 Plont growth ond temperoture Check your progress 2 3 6 B r0 12 14 Looking ofter ourselves 2.1 Food groups 2.2 A heolthy diet 2.3 An unheolthy diet 2.4 Exercise ond sleep IB 20 Check your progress 24 Living things 3,.l Living ond non-living 3,2 Growth ond nutrition 3.3 Movement ond reproduction t6 22 26 28 30 3.4 Sorting humons 3.5 Sorting living things 34 Check your progress 36 Contents 32 4 Our five senses 4,1 Heoring ond touch 4.2 Toste ond smell 4.3 Sight Check your progress 5 nvestigoti ng mqterio ls 5.-l Properties of moteriols 40 42 44 I 5.2 Sorting moteriols 5.3 Uses of moteriols 5.4 Testing moteriols 5,5 Mognetic moteriols Check your progress 6 3B 46 48 50 52 54 56 Forces ond movement 6.-l Push ond pull 6.2 Chonging shope 6.3 How big is thot force? 6.4 Forcemeters 6.5 Friction 5B 60 62 64 66 Check your progress 6B Reference Glossory ond index 70 Acknowledgements 74 BO Contents 'flrt,r{ * **/ *^i itr,ff ; .: , ";*- *. i':*t"'t ', , **, *0, fq' [.d ,#."1 l fl^ J ;' f .,3. ,",1 -i -;J lrtf,or.dg *o Ieq,rxa leoves flowers stem tronsport roots heolthy unheolthy Plants can [ooh very d{ferent. Most have Jour moln ports. lesves - make food for the plant flowers * help the plant to make seeds stern - to nonsport f woter oround the plont Moke o model plont Mohe a ptant [i,ke this one. Moke lobe[s Jor the stem, roots, leaves ond flower. Stick them to your plant. .,: / ./"--:-V r' E 't* ,,"--_/ !.---.' "r'',I : : ,i '. ..:. ,: .!,..:t .: ;; ' I Loo[ - Xem thêm -