SCIENCE SUMMARY 2nd semester FOR GRADE 2

SCIENCE SUMMARY 2^nd semester  FOR GRADE 2

1.      A force is a push or a pull

2.      There are three types of  force, they are :

-           can make objects move,

-           stop moving,

-           go to other way

3.      Pound clay to make it flat

4.      Press and stretch the dough to make bread

5.      Twist the cloth to squeeze out water

6.      Bend the balloon to make a new shape

7.      You need pull the drawer to open it

8.      Objects that use batteries to work are :

-          Alarm clock

-          Remote control

-          Cellular phone

-          Robot toys

-          Torch

-          camera

9.      You need to push the door to close it

10. When a goal keeper catches a ball, he makes the ball stop moving

11. You need a ladder to reach high places

12. We use these tools in the kitchen ;

Eggbeater, can opener, peeler

13. We use these tools in the study room :

Stapler, scissors, pencil sharpener

14. Ramp and trolley are tools that make our work easier

15. Tools help us fix objects are :

Screwdriver, and hammer

16. Part  of a pencil sharpener are : crank, blade, and casing

17. Part  of a hammer are face, head, claw, handle

18. A circuit made up of :

-          A switch

-          A battery

-          A wire

-          An electrical appliance

19. Part of scissors are : screw, blades, handle

20. Tools cannot work if some parts are missing

21. We  can change the shape of objects / materials , by

-          pounding,

-          pressing,

-          stretching,

-          twisting,

-           bending

22. The part of a tool must work together. They can not work on their own

23. Tools help us do our work more easily

24. Batteries come in different shapes and sizes

25. Magnets attract most objects that are made of metal

26. Magnet do not attract objects that are made of wood, glass, plastic, cloth, rubber, and paper

27. Magnet can be used in many ways :

-          In credit cards and bank cards

-          In purse clasps

-          As earings

-          To hold up paper

28. When you twist a cloth, you are changing its shapes

29. A pair of scissors needs two blades and a screw to work

30. You need a hammer to knock a nail into a piece of wood

31. The objects that can be attracted by magnet are :

-          paper clips,

-           nail,

-          spoon,

-           fork,

-          Knife, etc

32. Some electrical appliances do not need batteries to work.You have to plug them into socket instead