Science 5 Review Pointers

Practice flashcards covering materials and substances, animal reproduction, physical and chemical changes, and the human reproductive system based on Science 5 review notes.

What is the role of preservatives in food?

To prevent the spread of harmful microorganisms.

What do food additives include?

Seasonings and flavor enhancers.

What substance is used for cleaning wounds and bleaching?

Hydrogen Peroxide.

What type of substance destroys or prevents the growth of harmful microorganisms?

Disinfectant/Antiseptic.

What is soap made from, and what does it act as?

Soap is made from fats and acts as an emulsifying agent.

In what forms do soaps come?

Bar and liquid form.

Under what condition should medicine be taken?

Only with a doctor's prescription.

What constitutes your immediate environment?

Your home.

Does a frog undergo internal fertilization?

No, a frog does not undergo internal fertilization.

Are mice hatched from eggs?

No, a mouse is not hatched from eggs.

What kind of egg shells do birds, fowls, and reptiles have?

Hard.

Which penguin incubates eggs?

Male penguins.

What type of fertilization do most fish undergo?

External fertilization.

Does a cockroach undergo complete metamorphosis?

No, a cockroach does not undergo complete metamorphosis.

What is the largest group of insects?

Butterflies and moths.

What do butterfly eggs hatch into?

Caterpillars (larva).

Where do mosquitoes lay their eggs?

In swamps.

What shape is a mosquito pupa?

Shaped like a comma.

Is the statement 'Detergent does not work with water' true or false?

False.

What is a physical change?

A change in shape, size, volume, or state.

What is a chemical change?

A change in composition/atomic makeup.

What state transition occurs during condensation?

Gas to liquid.

What type of process causes changes in composition?

Chemical process.

What point is equal to the freezing point?

Melting point.

What is a fertilized egg cell called?

Embryo.

What is the complete set found in an embryo?

Chromosomes.

What serves as the thick lining for the fetus?

Uterus.

What organ absorbs oxygen, food, and water?

Placenta.

What is the nourishment tube called?

Umbilical Cord.

What are the primary female sex organs?

Ovaries.

What are female sex cells called?

Gametes.

What is another name for oviducts?

Fallopian Tubes.

What is identified as the strongest muscle?

Uterus.

What is the passage for a baby called?

Cervix.