The love of gardening drives me to make this collection
New garden from scraps
CARROTS:
Preparation
– The top of the carrots (2-3cm in length)
– Pure cups/ glass/ bowls
– 3 – 4 toothpicks/ small sticks
– Clean water
Instruction
– Step 1: Put the top of the carrots into the bowls with clean water so that the most of them would be inside the water.
Or cut 2/3 of the carrots off. Pushed the toothpicks through then put them on the glass. Pour in the water up to 1/4 of the carrots.
– Step 2: Put the bowl/ glass at the open air where they can absorb sunlight. Change water daily.
– Step 3: The new stems will grow after 1-2 weeks. Just remember to change water daily
(This way will not give you more carrots; however you will have new green sprouts and after their flowering, you can have seeds to plant new real carrots)
SWEET POTATOES
Preparation
– 3 sweet potatoes
– 3 pure cups/ glass/ bowls
– 3 toothpicks/ thin wood sticks
Instruction
– Step 1: Wash the potatoes and push the sticks through them. Then put them into glasses of water so that half of the potatoes are above the water.
– Step 2: Put the glasses somewhere filled with mild sunlight. The embryo will appear after about 1 week.
– Step 3: After 2 weeks there will be new leaves; however the potatoes are expected to be inside the water until they have new roots.
– Step 4: Gently peel off the tubers and put the slips inside glasses of warm water (about 35 C degree) with the roots fully under the water. After they are fully grown, it’s possible to plant them into the soil.
RICE
Preparation
– 1 handful of rice seeds
– Some cotton balls
– 1 cup/ glass/ bowl
– 1 spray bottle
Instruction
– Step 1: Put the cotton balls inside the cup then spread the seeds in.
– Step 2: Spray water and place the cup at a sunny, dry place.
– Step 3: Constantly water the rice to keep them at good humidity level.
– Step 4: After 3-5 days the seeds will germinate and have roots.
ONION
Preparation
– 1 onion
– Some cotton balls
– 1 cup/ glass/ bowl which size is smaller than the onion a little bit
Instruction
– Step 1: Pour water into the cup then put the onion on so that the roots would be inside the water
– Step 2: Place the cup at a sunny, dry place.
– Step 3: Constantly change the water.
– Step 4: After 5-7 days the onion will have new roots and sprout.
(This way will not give you more carrots; however you will have new green sprouts and after their flowering, you can have seeds to plant new real carrots)
POTATO
Preparation
– Some potatoes
– Pots with soil
– 1 cup/ glass/ bowl which size is smaller than the onion a little bit
Instruction
– Step 1: Cut large sprouted potatoes into smaller pieces so that each piece has one or two “eyes” (the small sprouts).
– Step 2: Fill the pots with soil then put the potato pieces in and cover them with a thin layer of soil.
– Step 3: Constantly water to keep them moist
Germination
Preparation
– Pots
– Flower seeds at different sizes
– Soil
📝Task: Keep samples of each kind of seeds and instantly make record about the status of each pot. At the end of the project, make a presentation about the process and result with consideration about the role of different factors at different phases of a plant.
Germination is one stage in the plant cycle when the seeds planted start to absorb water to be ready for a new life.
We did some tests with different samples to find out the best conditions for the germination process and the growth of new plants. From the tests, we came to the initial conclusions about a perfect process as below:
At the early stage, a lot of water should be pour into the pot so that the seed coats can be quickly softened
The pot should be put under the gently sunlight so that the embryo can get enough warmth to grow into the form of a sprout seed leaves (cotyledon)
After the first roots (radicle) the sprout should be put into soil to grow into the form of a shoot with first true leave (foliage leaves)
Decoration: With the arrangement for the Scavenger
Halloween exploration: Watch clips about Halloween
Party list: Let the kids prepare their invitation lists
Halloween party night: (Don’t forget the Trick-or-Treat) Start with Scavenger hunt, the kids are supposed to look for the leads and face a Math problem at the end of the game to win the final prize. Then they can relax with the Guessing game and Bingo. If time is enough, the kids will be separated into groups to write their own Story, solve the Crypto or Navigate the picture or make the Mummy cootie-catcher. At the end of the party, Songs will be played for a Happy Halloween
Direct the light beam upward through the water so that it hits the surface of the water from underneath. You can shine the beam into the water through the transparent bottom of the aquarium, or in through a side wall. The beam will be more visible if you can dim the room lights.
Point the beam so that it hits the surface of the water at just about a right angle. In the aquarium, you may be able to see both the reflected beam, which bounces back into the water, and the refracted beam, which comes out of the water and into the air. (You can also search for the beam and track it with a piece of paper.)
Slowly change the angle at which the beam of light hits the surface of the water.
Notice that the beam reflected into the water grows brighter as the beam transmitted into the air becomes dimmer.
Experiment until you find the angle at which the transmitted beam completely disappears. At this angle, called the critical angle, all the light is reflected back into the water.
The invisible bottle
Preparation:
– 1 small glass bottle
– 1 clear glass
– a little vegetable oil or animal fat
Instruction: Fill 1/3 of the glass with oil Fill of the bottle with oil Gently put the bottle inside the glass
Observation: Part of the bottle which is inside the glass disappears
Explanation: Light is transmitted through oil at a pace that is nearly the same as through glass
Preparation: – Water
– Jar or glass
– A paper with a design on it. If you wish, you can download and print our printable. It is two pages and includes the colored bars and two arrows
Instruction: Place a jar or glass about 6 inches in front of the colored bars or arrows. Pour in the water. Keep the eyes on the bars/arrows as you slowly pour the water into the jar.
Exploration: – Does it make a difference how close the water is to the paper? – Does it make a difference if the jar is square or round?
– What about the size of the jar or glass?
Explanation: Refraction is the bending of light. In this case, light traveled from the air, through the front of the glass jar, through the water, through the back of the glass jar, and then back through the air, before hitting the picture. Whenever light passes from one medium into another, it refracts.
In addition, the water acts as a magnifying glass, which bends the light toward the center. The light comes together at the focal point and beyond the focal point the image looks reversed because the light that was on the right is now on the left, and vice versa. Clear as mud?
The rainbow cup
Preparation:
– 2 paper cups
– tape
– scissors
Instruction: Cut through the bottom of 1 cup with a small square-shape at the middle of the cup then seal the square with tape. Create small holes at the bottom of the other cup with the tips of the scissors. Seal the top of 2 cups together by tape. Head the bottom with holes toward the light and watch through the square-hole at the other bottom
Preparation: – Water
– 1 clear glass
– 1 flashlight that emits strong focused white light. Flashlights that emit only yellowish light won’t work. Flashlights that don’t emit focused light also won’t work. Look for one with parabolic reflecting mirrors inside to focus the light, or one with a strong LED light
– 2 pieces of white cardboard
Instruction: Place a jar or glass about 6 inches in front of the colored bars or arrows. Pour in the water. Keep the eyes on the bars/arrows as you slowly pour the water into the jar.
Instruction: Fill the glass with water
Cut a narrow rectangle in the middle of one piece of paper
Stick that paper to the outside of the glass so that the slit is at the center
Place the other piece of paper on the floor on the other side of the glass to catch the rainbow
In a pitch dark room, point the flashlight at the slit
Start from the glass and slowly move the flashlight farther and farther from the glass
Adjust the distance and angle of the flashlight until you see a rainbow on the paper on the other side
Explanation: When light passes from one medium to another medium of a different density (e.g. from air to water), the light bends.
How much a light is refracted depends on the wavelength of the light. The shorter the wavelength, the more it bends. Because lights of different colors have different wavelengths, each color is refracted by different amounts.
Therefore, white light is split up after passing from air to water and the individual colors become visible. This dispersion of light allows us to see the spectrum of colors that form a rainbow.
In nature, a rainbow is formed when sunlight is refracted on entering a droplet of water, reflected inside the back of the droplet and finally refracted again on leaving the droplet.
Chúng mình cùng chơi 1 trò chơi thú vị, vừa luyện khả năng tập trung, vừa học về từ đồng âm nhé.
Trong những đoạn ca dao/ thơ/ văn ngắn sau có những từ lặp đi lặp lại với nghĩa khác nhau, bố mẹ nói trước từ cần tìm và đọc to, mỗi khi đến từ đó, các con vạch 1 vạch vào giấy.
Sau đó chúng mình tổng kết lại thực sự có bao nhiêu từ lặp lại và ý nghĩa khác nhau của chúng nhé:
* Con ngựa đá con ngựa đá, con ngựa đá không đá con ngựa
* Bói quẻ lấy chồng xem có lợi chăng,
Thầy bói gieo quẻ nói rằng
Lợi thì có lợi, nhưng răng không còn
* Trời mưa, trời gió vác đó(1) ra đơm Chạy vô ăn cơm chạy ra mất đó(2). Kể từ ngày mất đó(3) đó(4) ơi Răng đó(5) không phân qua nói lại đôi lời cho đây hay?
Hoặc thử tài với các câu đố sau nhé:
* Một trăm thứ dầu, dầu chi là dầu không thắp? Một trăm thứ bắp, bắp chi là bắp không rang? Một trăm thứ than, than chi là than không quạt? Một trăm thứ bạc, bạc chi là chẳng ai mua?
(Một trăm thứ dầu, dầu xoa không ai thắp/ Một trăm thứ dầu, dãi dầu thì không ai thắp) Một trăm thứ bắp, bắp chuối thì chẳng ai rang/ Một trăm thứ bắp lắp bắp mồm, lắp bắp miệng thì chẳng ai rang Một trăm thứ than, than thân là than không ai quạt Một trăm thứ bạc, bạc tình bán chẳng ai mua)
Hay thử đoán xem nghĩa của những từ quen thuộc được biến đổi thế nào:
* Chị Xuân đi chợ mùa hè Mua cá thuvề chợ hãy còn đông
* Anh Hươuđi chợ Đồng Nai Bước qua Bến Nghé ngôi nhai thịt bò
* Ngọt thơm sau lớp vỏ gai
Quả ngon lớn mãi cho ai đẹp lòng
Mời cô mời bác ăn cùng
Sầu riêngmà hóa vui chung trăm nhà
* Nhớ nước đau lòng con quốc quốc Thương nhà mỏi miệng cái gia gia