Grade 6 Science Term 1

1) Which of the following is an emergency hormone prolactin Adrenalin progesterone pituitary 2) In which of the following circuits A, B and C given in figure , the cell will be used up very rapidly Circuit A Circuit B Circuit C Same for all the circuits 3) Reptiles have _ for respiration. gills stomata lungs None of these 4)Which of the following figures does NOT show the poles correctly?A) (B) (C) (D) B C D A 5) See the image below and name the processes marked 1 and 2. 1-condensation2 -sedimenation 1 - condensation2 - boiling 1 - evaporation2 - condensation 1 - evaporation2 - filration 6) State whether the statements are true or false. If the statement is false rewrite the correct statement. a) Amphibians live only on land.b) Nitesh bought a bar magnet near object P. Part of P was attracted to south-seeking pole of the bar magnet as shown in the diagram below.The North seeking pole of the magnet will repel Ac) After filtration, the solid substance that remains on filter paper is called residue. 7) Label the image along with the function of each part :- cell wall -provides rigid structure and protection; made of cellulose Mitochondria - Organelle for cellular respiration –provides energy cytoplasm -everything inside of the cell membrane except for the nucleus Nucleus: The nucleus is the ‘control center’ of the cell. controls what happens inside the cell Nucleolus- helps in protein synthesis and production of the ribosome in the cells. Cell membrane - regulates the transport of materials entering and exiting the cell. 8) 10. A magnet was brought from different directions towards a toy boat that has been floating in water in a tub.Effect observed in each case is stated in Column I. Possible reason for the observed effects are mentioned in Column II.Match the statements given in Column I with those in Column II. Boat gets attracted towards the magnet boat is made up of magnetic materials Boat moves towards the magnet if north pole of the magnet is brought near its head Boat is fitted with a magnet with south pole towards its head Boat moves away from the magnet when north pole is brought near its head Boat is fitted with a magnet with North pole towards its head Boat floats without changing its direction Boat has a small magnet fixed along its length 9) Write ithe process used to separate each mixture:- evaporation salt + water process of sweating hand picking rice + pasta shapes sieving flour + rice sand and gravel filtration sand + water 10) (a) Classify each of the following as a homogeneous or heterogeneous mixture :- wood, air, soil, filtered tea. Homogeneous mixture Heterogeneous mixture air, filtered tea. Wood, soil. 10) (b) Give reason for the above classification your answer.