Force and Pressure — Science STD 8 — Question

By which term, stoppage of menstruation is described?

What is the top trophic level in a food chain?

Fill in the following blanks with suitable words: A place where animals are protected in their natural habitat is called_____________

Name the biggest planet of the Solar System.

Does pure water conduct electricity? If not, what can we do to make it conducting?

Reema has a piece of modeling clay that weighs 120 g. She first moulds it into a compact cube that has a volume of 60 cm³. Later, she flattens it into a thin sheet. Predict what will happen to its density.

Fill in the blanks.
Phosphorus is a very non-metal.

Why did the balloon inflate in test tube B when yeast was added?

State whether the following statements are True or False: Internal fertilization takes place in hens.

Explain the concept of muscular force.