<p class="ql-block"><br></p><p class="ql-block"><br></p><p class="ql-block"> [ row 】 to move a boat through water using oars (= long wooden poles with flat ends )划(船)</p><p class="ql-block">【 stream 】 A stream is a natural flow of water moving across country between banks . It is smaller than a river .</p><p class="ql-block">【 ocean 】 the mass of salt water that covers most of the earth ＇ s surface 大海;海洋</p><p class="ql-block">【 river 】 a natural flow of water that continues in a long line across land to the sea / ocean 河;江</p><p class="ql-block">【 lake 】 a large area of water that is surrounded by land 湖;湖泊</p><p class="ql-block">【 pond 】 a small area of still water , especialy one that is artificial 池塘;水池(尤指人工的)</p><p class="ql-block"><br></p> <p class="ql-block">Game 1 row your boat </p><p class="ql-block">M: would you like to row a boat?</p><p class="ql-block">B: Yes </p><p class="ql-block">M: Look at me, I can be a boat. I sit down on the sofa moving forward with my two legs like this. Meanwhile, swing your arms back and forth like you are rowing a boat. Remember you should row your boat to the beat of song. </p><p class="ql-block">B: OK </p><p class="ql-block">M: Max, let us have a boat race. Here is a staring line. That is finish line over there. We can use chair as our boat. All players need to sing a song when they push along their boat. Who cross the finish line first would be winner. </p><p class="ql-block"> </p><p class="ql-block"><br></p> <p class="ql-block">Game 2 Make a paper boat </p><p class="ql-block">M: Max, next I need a piece of paper to make a paper? Would you like to make your own boat with me?</p><p class="ql-block">B: </p><p class="ql-block">M: This is my paper, that is yours. Next you must watch carefully and do as I do. </p><p class="ql-block">B: </p><p class="ql-block">M: First, Lay down your paper on the table, fold it in half. You must make sure two sides meet each other well. That will make a crease in the middle of the paper. </p><p class="ql-block">B: </p><p class="ql-block">M: Second Unfold it and rotate it 90 degrees and fold it in half again. If you do not want move the paper, you fold it from left to right. In order to have a clear crease, you should run your fingers down the fold 3-4 times. </p><p class="ql-block"> </p><p class="ql-block">The third step is to fold two top corners down towards the middle of the paper. Do not forget to make a neat crease too. Now you can see 2-2.5cm of space at the bottom. Make sure the folds line up with the center crease. </p><p class="ql-block"> </p><p class="ql-block">Fourth is bring the bottom of the paper up to fold it against the side. When you are done, turn it over and do the same thing to the flap on that side. (when you go to fold the second side, use the first fold as a reference point)</p><p class="ql-block">Next is take the bottom corners and fold them in. See we got a triangle like a hat. Make it into a square. Fold up the bottom flaps. It became triangle again. </p><p class="ql-block">One last one step is to up the triangle , then use your fingers to open up the bottom of triangle. Crease the paper along its edges so that it stays in the square shape.</p><p class="ql-block"> </p><p class="ql-block">Pull out the triangles on the side of the square. The boat is done.</p> <p class="ql-block">Game 3. I'm the bravest one</p><p class="ql-block">Mommy make a fake crocodiles tail with material that are easy to find at home. Tie it to your baby's waist. When you sing the song, when it comes to 'if you see a crocodile, you should grab the crocodile’s tail and say, 'I am brave,Then let baby turn around to try and catch you. Then you can switch roles</p> <p class="ql-block">Game 4 scream crocodiles</p><p class="ql-block">It is a interesting game we can play at home or open place. This game needs at least four players, so ask more family member to join you. Get them sit in a circle on a carpet or floor directly. Choose one to be it. Then star passing around crocodile toy from it as you sing. When the song ends, who has a crocodile should scream.</p> <p class="ql-block">Game 5 Act it out </p><p class="ql-block">Max, let us play row row row your boat. First, we need a stream where we can row a boat. Then we still need to get a boat to ride. What can we use as a boat? Can cushion be a boat. </p><p class="ql-block">No, it is too small and soft.</p><p class="ql-block">Yes, boat should be larger and strong than it. At least it must feels hard. </p><p class="ql-block">We can use my toy container that has four wheels on its bottom so we can push. </p><p class="ql-block">That is great choice. I bet it must be a awesome boat. Let us empty it. </p><p class="ql-block">Boat only can move through water. The question is what we can be pretend stream, stream is a small narrower river. </p><p class="ql-block">We pretend floor is a stream. I am afraid it is too wider, as we said just now, stream is narrower than river. How about we put two jump ropes on two sides as bank. </p><p class="ql-block">Yes, that is it. </p><p class="ql-block">What else do we have if we want to row a boat?</p><p class="ql-block">Paddles.</p><p class="ql-block">Yes, paddles is what we can hold in hand to move boat through water. They are usually short pole with a wide part at one end. They should be as hard as boat. Go off and choose something that are suitable.</p><p class="ql-block">Mummy, I know. My iron bar are perfect. </p><p class="ql-block">Ok, get them now. </p><p class="ql-block">All is ready. It is time to row our boat. </p><p class="ql-block"> Jump on to your boat, hold the paddle. On this boat, you are captain. We must do what you tell us. Oh, Watch out, It sees there is a crocodile in sight. It is swimming towards us. Let us scream together to scare it away.</p> <p class="ql-block">Game 6 To be a scientist</p><p class="ql-block"> All objects, including liquids, have a mass-to-volume ratio known as density. Density is a measurement for how compact (close together) the molecules in the object are.</p><p class="ql-block">You probably already know that some things will float in water and some will not. Do you know why that is? Sometimes the best way to find out if something will sink or float is just to try it—and that is exactly what you’ll do in this “floatable objects” experiment! Gather up some objects from around your house to test their sinking or floating abilities. Make sure all of the items you pick can get wet!</p><p class="ql-block">What You Need:</p><p class="ql-block">. a large container of water (or fill up a sink or bathtub)</p><p class="ql-block">. lots of small objects of different weights and materials (plastic, metal, wood, foil, Styrofoam)</p><p class="ql-block">. a few larger objects</p><p class="ql-block">. HST worksheet</p><p class="ql-block">I'm going to show you an experiment that is called float and sink.I prepared various kinds of items including block, paper boat, stone,</p><p class="ql-block">stainless spoon, chopsticks. Look, this is a paper boat.</p><p class="ql-block">The paper boat can float on water.</p><p class="ql-block">"Row…"</p><p class="ql-block">Look, here is a stone. Guess, can a stone float on water?</p><p class="ql-block">It sank into water.</p><p class="ql-block">What other things can float on water? Try to find some objects that can float on water and try out.</p><p class="ql-block">Ok, now, let's test…</p><p class="ql-block">Experiment：float or sink？</p><p class="ql-block"> </p><p class="ql-block"> </p><p class="ql-block">Hello, everyone, I'm Max. I'm a scientist. I'll show you an experiment.</p><p class="ql-block">The experiment is called float or sink. Look, this is a plastic bottle. Will it float on the water or sink into the water? Let's see. Can you guess firstly?</p><p class="ql-block">It will float or sink? Put each item in the water and record your results.</p><p class="ql-block">Yes, it can float on water. Did you guess correctly?</p><p class="ql-block">Why?</p><p class="ql-block">Objects that have a lower density than water will float, while objects or materials that have greater densities than water will sink. </p><p class="ql-block">Next one, it's a…</p><p class="ql-block"> Does it sink or float? </p><p class="ql-block"> </p><p class="ql-block"> </p><p class="ql-block"> </p><p class="ql-block"> </p><p class="ql-block">Experiment </p><p class="ql-block"> </p><p class="ql-block">The Salt Water Eggs</p><p class="ql-block">For the Salt Water Egg experiment you will need the following materials:</p><p class="ql-block">· Table salt</p><p class="ql-block">· Two containers</p><p class="ql-block">· Tablespoon</p><p class="ql-block">· Tap water</p><p class="ql-block">· Two raw eggs</p><p class="ql-block"> </p><p class="ql-block">Fill the two containers with tap water.</p><p class="ql-block">Add about 6 tablespoons of salt in one container and stir it well with a tablespoon until the salt has completely dissolved in the water.</p><p class="ql-block">Place one egg in each of the containers and observe which one of the eggs float in the container and which one sinks.</p><p class="ql-block"> </p><p class="ql-block">Why does an egg float in salt water?</p><p class="ql-block">Because the density （密度） of the egg is higher than the density of tap water, so it sinks. the egg can float on salt water because salt has more density than an egg.</p><p class="ql-block">Adding salt to the water increases the density of the water, because the salt increases the mass without changing the volume very much. With enough added salt, the saltwater solution density is higher than the egg's, and the egg will then float.</p><p class="ql-block">Density, is the mass of stuff in a unit of volume.</p>