Science Student Questions

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Showing: All Grades / Science (1377 questions)

by SAWAN KUMAR · Class 8

Which organelle lacks ribosomes on its outer surface and is primarily responsible for lipid synthesis and detoxification of poisons in a cell?

Science Microorganisms 0 0 answers 0%
by SAWAN KUMAR · Class 8

Which of the following cell organelles contains chlorophyll and is exclusively found in plant cells to perform photosynthesis?

Science Microorganisms 0 0 answers 0%
by HARNOOR KAUR · Class 8

A sound becomes louder, but its pitch stays the same. What changed?

Science Sound 0 1 answers 100%
by HARNOOR KAUR · Class 8

Two identical bulbs are connected in series to a battery. One bulb breaks. What happens?

Science Chemical Effects of Electric Current 0 1 answers 100%
by HARNOOR KAUR · Class 8

Why does a drawing pin have a sharp point?

Science Force and Pressure 0 1 answers 100%
by HARNOOR KAUR · Class 8

Two objects travel the same distance. Object A takes 5 seconds; object B takes 10 seconds. Which is faster?

Science Friction 0 0 answers 0%
by HARNOOR KAUR · Class 8

A student pushes a heavy box, but it doesn't move. Which statement is correct?

Science Force and Pressure 0 1 answers 100%
by SAWAN KUMAR · Class 8

The audible range for a healthy young human ear is approximately

Science Sound 0 1 answers 100%
by HARNOOR KAUR · Class 8

What is galvanisation?

Science Coal and Petroleum 0 1 answers 100%
by HARNOOR KAUR · Class 8

Which gas is released when a metal reacts with a dilute acid?

Science Metals and Non-metals 0 0 answers 0%
by SAWAN KUMAR · Class 8

Which situation needs high friction?

Science Friction 0 0 answers 0%
by RAJANYA MONDAL · Class 7

Which of the following is NOT required for the Calvin cycle?

Science Other 0 0 answers 0%
by RAJANYA MONDAL · Class 7

What is the difference between egestion and excretion?

Science Other 0 2 answers 100%
by RAJANYA MONDAL · Class 7

Which enzyme and food component are correctly matched?

Science Nutrition in Plants and Animals 0 0 answers 0%
by RAJANYA MONDAL · Class 7

In lichens, the association between algae and fungi is best described as:

Science Nutrition in Plants and Animals 0 0 answers 0%
by RAJANYA MONDAL · Class 7

Which statement about polyester is correct?

Science Fibre to Fabric 0 1 answers 100%
by RAJANYA MONDAL · Class 7

Rusting of iron requires:

Science Physical and Chemical Changes 0 0 answers 0%
by RAJANYA MONDAL · Class 7

The 3Rs of waste management stand for:

Science Natural Resources and Their Conservation 0 0 answers 0%
by RAJANYA MONDAL · Class 7

Which acid is present in ant sting?

Science Acids, Bases and Salts 0 0 answers 0%
by RAM PANKAJ DESHMUKH · Class 8

A push or pull acting on an object is called:

Science Force and Pressure 0 1 answers 100%

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