G2 How do living things use energy? 102019-05 3 G2 What is energy? 102019-05 4 G2 How can cooling and heating change ma 62019-05 5 G2 How can matter be changed? 122019-05 6 G2 What are the states of matter? 102019-05 7 G2 What are the states of matter? 72019-05 8 G2 ...
SCIENCE CONCEPTS Have students suggest ways in which consumers depend on other living things and ways in which energymoves through food chains and foodwebs. Write their responses on the board,and have them revise their ideas as theyprogress through the lesson.Ouch! Only female mosquitoes bite...
To produce this kind of energy, people "collect" sunlight and change it into electricity. It takes special equipment to do this, but once the equipment is made, solar energy is free. Collecting solar energy does not produce pollution, so it's a "green" way to create electricity for every...
Your energy is transferred (转移) to the bike. That makes the bike move. Now imagine riding your bike to create enough power to run a computer. Some students at one school did just that! They jumped on bikes connected to generators (发 电机) and pedaled in place. Soon they were ...
Plants, like all living things, need air, water and sunlight. Plants do not grow well when they are close together. They need room to spread their leaves to get sunlight and to spread their roots to get water. But air, water and sunlight are not enough. Plants also...
Why do living things need to maintain homeostasis? What living things carry on the process of cellular respiration? What part of the cell helps maintain homeostasis? Which nutrients are likely to decrease energy metabolism? What are the waste products of energy metabolism...
Energy is the ability to do work.Solar energy comes from the Sun.There is also energy that comes from wind and water. But do you know that energy can come from people,too?When you pedal a bike,you produce energy.You use your legs to push the pedals.Your energy is transferred(转移) ...
Energy-saving and emission reduction 气候变化是人类面临的全球性问题,二氧化碳排放温室气体猛增对生命系统形成威胁。世界各国以全球协约方式减排温室气体,中国提出“2030碳达峰”、“2060碳中和”目标,即“二氧化碳人为移除抵消人为排放”,承诺二...
the clear water was a turbid stream. Trees less, castle peak bald, grassland drought, water dark and make people living environment deteriorate, breathe the air, living environment "occupied" by many harmful things, the virus will take into the body of people, we human beings will suffer from...
How do free energy machines work? Energy: For some work to be done on an object, energy is required. Energy is of many different types throughout the universe. The most common forms of energy we use or feel in our daily life are Kinetic energy, Potential energy, Electrical energy, and ...