11.

The National Curriculum Framework (NCF), 2005 recommends that teaching of Science at upper primary stage should emphasize maximum on

• answering all questions given in textbook exercises

• improving students' performance in examinations

• relating classroom learning to life outside the school

• memorising all scientific terms given in textbook

Geeta is preparing a lesson plan for teaching the topic of 'Human eye' to class VIII students. Inclusion of which of the following activities in the lesson-plan is likely to be most effective in helping the students understand related concepts better?

• Using student activities and interactive classroom questioning

• Demonstration using model of human eye

• Preparing a good home assignment

• Dictating notes to students in the classroom

On the basis of recommendations of National Curriculum Framework (NCF), 2005, NCERT textbooks in Science lay greater emphasis on

1. discouraging rote learning
2. maintaining sharp boundaries between different domains of Science curriculum
3. providing active learning experiences to students
4. learning exact definitions of scientific terms

Which one of the following pairs represents the combination of correct statements given above?

• C and D

• B and C

• A and B

• A and C

Which one of the following approaches adopted by a Science teacher reflects scientific temper on her part?

• Encouraging students to ask questions in the classroom

• Preparing difficult question papers to enhance learning

• Maintaining perfect discipline in the class

• Covering the prescribed syllabus as quickly as possible

The following steps (not in the proper sequence) are generally recommended to be followed in the scientific method.

1. Testing of hypothesis
2. Formulation of hypothesis
3. Identification of problem
4. Collection of data
5. Drawing of conclusion

Which one of the following is the correct sequence of the above steps to be followed for this purpose?

• D, C, B, A, E

• B, C, A, D, E

• C, A, D, B, E

• C, B, D, A, E

Hands-on activities and projects form an integral part of the learning of Science. These learning experiences primarily aim at

• maintaining discipline in the laboratory

• providing opportunity to students for extended learning

• assessing the students on practical skills

• keeping the students engaged all the time

Study the following statements about excretory system in humans

1. Wastes dissolved in water are filtered out as urine in the kidneys.
2. Urine stored in the urinary bladder is passed out through the urinary opening at the end of the urethra.
3. The ureter carries urine to the urinary bladder.
4. Useful substances are absorbed back in the blood
5. Blood containing useful and harmful substances reaches the kidney for filtration.

The correct order of the processes given in the above statements is

• B, D, E, A, C

• E, D, A, B, C

• D, E, A, C, B

• E, D, A, C, B

The pseudopodia of Amoeba are used for

• movement

• movement and capture of food

• sensing the food

• capture of food

Below are given some organisms.

1. Yeasts
2. Bedbugs
3. Leeches
4. Cuscuta
5. Algae
6. Lice
7. Mushrooms
8. Lichens

The organisms which may be classified in the group of parasites are

• B, C, D and F

• C, D, E and G

• A, C, F and G

• B, C, D and H

Match the columns.

Column A

1. Alexander Fleming
2. Edward Jenner
3. Louis Pasteur
4. Robert Koch

Column B

1. Anthrax bacterium
2. Fermentation
3. Lactobacillus bacterium
4. Penicillin
5. Smallpox vaccine

The correct match of the names of scientists with their discoveries is

• A : IV

  B : II

  C : V

  D : III

• A : III

  B : V

  C : II

  D : I

• A : IV

  B : V

  C : II

  D : I

• A : III

  B : II

  C : I

  D : IV