Interactive Science Reading Book 1

Transcription

1 Unit 1 Living Things 1. Plants and animals are living things. 2. Rabbits and trees are living things. Pencils and tables are non-living things. 1. c 2. a 3. b 4. b living thing safe move rabbit tree butterfly pencil table rock

2 Unit 2 Plants 1. A seed, stem, and roots are the parts of a plant. 2. A seedling grows from a seed and it grows into a stem. Then the roots go down into the ground. 1. a 2. a 3. b 4. a seed seedling

3 Science Activity Seeds sprout. Then the stem and roots grow.

4 Unit 3 Animals 1. An animal moves to find food and to stay safe. 2. A dog starts life small and changes its size as it gets older. Then it becomes an adult. 1. b 2. a, b 3. b 4. a change small life cycle small grows changes

5 Unit 4 Life and Learning 1. Animals need to keep themselves safe, find food and water, and rest. 2. We can look, listen, touch, taste, and smell things around us. 1. c 2. a 3. a 4. b e n s e a s t e u r v i v e m e l l listen look touch smell taste Science Activity I used a touch to figure out what was in the box. It was hard to figure out what was in the box. A sight and a smell would have made it easier to figure out what was in the box.

6 Unit 5 Sharing Our World 1. Living things share the air and water. 2. They need each other for food. For example, plants are food for many animals. 1. b 2. c 3. b 4. b environment water air share

7 Review 1 tree grass cactus dog bird hamster 1. False (An animal is not a living thing.) 2. False (Most plants grow from stems.) 3. True (Living things have a life cycle.) 4. True (Animals need to keep themselves safe.) 5. True (The place where plants and animals live is their environment.) 1. Animals move to find food. 2. A seedling grows from a seed. 3. Living things grow and change as they get older. 4. All animals use their senses to survive. 5. Living things need each other for food.

8 Unit 6 What Makes It Go? 1. We get energy from food. 2. Wind, moving water, electricity, and muscle power make things go. 1. a 2. b, c 3. a 4. a n e r g y l e c t r i c i t y u s c l e o w e r electricity moving water muscle power

9 Unit 7 Nature s Energy 1. People use wind and water energy. 2. Windmills use wind energy. Rafting uses water energy. 1. b 2. a, c 3. c 4. c wind turbine wave natural windmill wind surfing rafting watermill Science Activity The water balloon moved the ball 10cm from the line. The air balloon moved the ball 8cm from the line. The water balloon moved the ball farther. I think water has more energy than wind.

10 Unit 8 The Sun 1. We get heat and light from the sun. 2. The sun heats the ground, plants, air, water, and animals. 1. c 2. a 3. c 4. b x y g e n i g h t a r t h e a t plant ground air water animal

11 Unit 9 Switch It Off 1. Electricity is important to our lives because it makes our lives better. 2. TV s, telephones, and computers use electricity. 1. b 2. b 3. c 4. c e l e p h o n e w i t c h o m p u t e r i r e refrigerator radio oven

12 Unit 10 Running Out of Energy 1. We should save energy because it doesn t last forever. 2. We can ride a bike or walk, and recycle waste to save energy. 1. b 2. c 3. a 4. a, b coal fuel oil recycle walk recycle paper

13 Review 2 1. True 2. False 3. True 4. False 5. True 1. Energy is important to life on Earth. 2. Wind is a natural source of energy. 3. The sun gives out heat and light. 4. Electricity is made at a power station. 5. Coal and oil will not last forever. n e r g y u r b i n e x y g e n w i t c h u e l

14 Unit 11 Watch the Weather 1. The sun makes the weather change. 2. The weather can be hot, cold, windy, wet, or sunny. 1. a 2. c 3. a, c 4. b rainy rainy rainy rainy cloudy cloudy

15 Unit 12 Changing Seasons 1. We have four seasons in one year. 2. In summer, Earth tilts towards the sun. In winter, Earth tilts away from the sun. 1. a 2. b 3. c 4. b season tilt winter summer sun summer winter

16 Unit 13 Spring and Summer 1. Spring comes after winter. 2. In spring, trees start to grow leaves and flowers, and baby animals are born. In summer, we get more hours of daylight and ripe fruits from trees. 1. c 2. a 3. a, b 4. b a y l i g h t p r i n g i p e n The weather gets warmer. Many trees grow new leaves. Fruit ripens on trees. Baby animals grow up.

17 Unit 14 Fall and Winter 1. The leaves on trees change their color and fall down to the ground. 2. In fall, some animals migrate to warmer places. In winter, many animals grow thick coats and some animals hibernate. 1. b 2. a 3. c 4. c fall hibernate migrate W F F W

18 Unit 15 Day and Night 1. In the day, animals wake up and look for food. At night, they usually sleep. 2. As Earth spins, the part facing the sun is lit up. It is day in that part of the world. The other part of the Earth is in shadow. It is night in that part of the world. 1. a 2. c 3. b 4. c day light shadow night Science Activity The part where the flash lighted was daytime. The part where the flash didn t light was night. The place where I was changed because the ball spun itself. It is day right now. The sun is where I am.

19 Review 3 D N N 1. True (The sky changes with the weather.) 2. False (It takes a year for the sun to go around Earth.) 3. True (In spring, the weather gets warmer.) 4. True (Winter is the coldest season.) 5. False (All the animals sleep at night.) 1. weather 2. tilts 3. ripens 4. migrate 5. spins

20 Unit 16 Build It, Use It 1. Structures are some things that have been built. 2. Buildings, bridges, and umbrellas are the structures made by people. Nests, burrows, and traps are the structures made by animals. 1. a 2. c 3. b 4. b trap structure purpose shelter umbrella building bridge nest burrow trap

21 Unit 17 Choose It, Strengthen It 1. People choose the best material for the purpose. 2. Skis are made of plastic and wood. Bridges are made of stone and wood. 1. c 2. c 3. a 4. b support design building material plastic, wood metal, plastic stone, wood metal wood, plastic glass

22 Unit 18 Join It, Move It 1. A structure is made of many parts. 2. A wheel makes a bicycle work and a battery makes a lantern work. 1. a 2. b 3. c 4. c

23 Unit 19 Under It, Over It 1. The shape, design, and materials make structures strong. 2. Some vehicles such as buses can go over the bridge, and other vehicles such as boats can go under the bridge. 1. c 2. a 3. c 4. a, c a v i n e r i d g e b s t a c l e airplanes, balloons, helicopters buses, bicycles canoes, ferries, ships Science Activity The rectangle was stronger. The rectangle is often used in structures because it is stable.

24 Unit 20 Re-Use It, Recycle It 1. We should recycle materials because old things can be made into new things. 2. We can re-use or recycle plastic, glass, and metal. 1. b 2. a 3. a 4. b u r n i t u r e a n d f i l l e u s e Food scraps Plastic Paper

25 Review 4 1. Structures have a purpose. 2. People choose the best material for the purpose. 3. We use different things to hold parts together. 4. The design of a bridge makes it strong. 5. Plastic bags can be saved and re-used. 1. Some animals make traps to catch food. 2. Buildings have strong supports. 3. The parts make the structure work. 4. Boats can go under bridges. 5. Old tings can be made into new things.