1. Answer the following questions in one word or one sentence: -
(1x8=81)
1.1. Give ose term where two or more bones meet.
1 2. An organisin made up of a single cell is known as?
13 Name to gases which breathe in and breathe out by all living organisms.
1.4.00 w ich principle a pin hole camera is based for propagation of light?
1.5 A freely suspended magnet always points in which direction?
1.6. Name a device which were used by sailors to found directions.
1.7 Name the process in which water vapours converts into water droplet.
1.8. What is moving air called?
2 The wens u below are incorrect. Write the corris statements: (1*=S1)
2.1. Plaos with wezk stems that spread on the ground are called herbs
22 Pivot joint allows movement in one direction only.
23. Terrestrial animals possess a streamlined body.
2.4. A screen is not necessary to obtain a shadow.
2.5. The path along which light energy travels in a given direction is scattering of light
2.6. When an electric circuit is closed, the electric current stan flowing through it
2.7. Natura' magnets are stronger than the artificial magnets
28. Steam rises from moist clothes on ironing.
Answers
11)joint
12) unicellular organism
13) oxygen and carbon dioxide
14) The image formed by the camera shows the rectilinear propagation of light, which means the pinhole cameras rely on the fact that light travels in a straight line.
15)north-south direction
16)magnet
17) Condensation
18) wind
21)A plant having thin, long and weak stem which cannot stand upright and spreads on the ground, is called a creeper or creeper plant
22)it is a freely moveable joint (diarthrosis) that allows only rotary movement around a single axis.
23)marine animals possess a streamlined body.
24) without screen a shadow can be made. for eg: sunlight shadow
25)The path along which light travels is called a Ray.
26) When an electric circuit is closed, the electric current start flowing through it.
27)true