What basic needs do all living things share?

food, water, a place to live, and air

water, shelter, safety, and oxygen

food, hydrogen, a place to live, and water

what does a plant cell have that an animal cell does not?

a cell wall, a box-like shape,different coloring

only a cell membrane, a variety of shapes and colors

both a cell wall and a cell membrane, has a nucelus

has a cell membrance and a cytoplasm

Science Lessons 1 &2 Quiz

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Energy is very useful to us. We have proved it in our previous lessons. But do you know that, energy can also be harmful? Yes, energy can harm or cause different health problems if we expose ourselves too much to it. Too much exposure to the bright light of the sun and other artificial lights can cause… a. damage to our eyes that may lead to blindness b. skin allergies that may lead to skin cancer c. sunburn We can prevent the above health problems by… a. avoiding looking directly to the source of bright light such as the sun. b. wearing hat or using umbrella when going out of the house during the hottest part of the day which is from 10 am to 2 pm. c. putting on sunblock to protect your skin Too much heat can cause… a. dehydration or loss of body fluids because of perspiration b. burns These can be prevented by… a. drinking plenty of water b. using pot holders when handling hot objects SCIENCE 2 – MODULE 6 SEIBO COLLEGE 29 Too much exposure to loud sounds can cause… a. hearing difficulty that may lead to deafness b. nervousness We can avoid these health problems if… a. we talk softly especially when the person we are talking to is near us b. we avoid places which have loud sounds. Electrical energy can give us a comfortable life, but it can cause great danger to us. So to avoid accidents that may harm us in handling electrical devices we need to practice safety precautions. Below is a list of the things that we should do. Study it carefully. Safety Precautions in Handling Electrical Devices 1. Never play with live wires and electrical plug. 2. Never touch any electrical device with wet hands. 3. Do not overload electrical sockets. 4. Do not play or insert things especially metals into electrical outlets. 5. Never play with the switch of any electrical device

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6 Science Chapter 2 Lesson 1 Genes Making You the Person You Are

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