A Science exhibition is a competition where contestants present their science project, results in the form of a report, display board, and/or models that they have created develop creative skills. They can do something new in the form of Modal. So, “Provide a creative channel for learners” is the most appropriate objective to organized the science exhibition.

Project-cum-laboratory method of teaching should be preferred by a science teacher to achieve the objectives. 
Hence, option C is correct.

Practical work in Science may be given due emphasis in order to help the students develop the habit of maintaining written records. 
Hence, option B is correct.

Good science education should be ‘true to the child’, implies that science we teach should relate to the environment of the child. 
A good Science teacher has to have the ability to make connections of Natural Resourceswith syllabus and excite students,”

For the measurement of a solid one has to follow the following steps in sequence : 
1. Record the least count of the measuring cylinder 
2. Put sufficient water in the cylinder and note the reading 
3. Suspend the solid with a thread inside water in the cylinder 
4. Note the reading of the level of water in the cylinder 

Therefore Option C is correct.

No two students learn something in the same way. A teacher’s teaching style is based on their educational philosophy, their classrooms demographic, what subject area (or areas) they teach, and the school’s mission statement. In the given activity, teacher is using student centered approach. In students centered method teacher teaches the students in what they want to learn.

One of the limitations of problem based learning for science teachers in practical class is prior knowledge of practical/theory topic might not be known to students. 
Hence, option B is correct.

The technique of 'classroom questioning' in teaching of Science can be more effectively used for ensuring levels of learning. 
Hence, option A is correct.

Assessment in Science should focus more on testing the ability of students to apply the understanding of concepts to unfamiliar situations in everyday life. 
Hence, option B is correct.

In a deductive classroom, the teacher conducts lessons by introducing and explaining concepts to students, and then expecting students to complete tasks to practice the concepts; this approach is very teacher-centred. 
Hence, option A is correct.