Drop Them Both! (Compound Words)

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Science Decodable Reader with Compound Words

Practice Words

Two-syllable compound words formed by joining two smaller words together.

airport benchmark cardboard daydream driveway forecast hillside inside notebook nothing outside outweigh pathway raindrop raindrops something sunshine textbook without
Page 1
On the right side of the image, The Boy sits on the grass leaning against the trunk of a large tree, holding a rock up in one hand and a white feather in the other. He has a curious, wide-eyed expression as he examines the rock. The scene is set outdoors on a grassy hillside with soft, rolling green hills and a pale cloudy sky in the background, suggesting daytime with gentle overcast lighting. The left side of the image is open sky and hillside, clear of characters or objects.

This boy sits outside on the hillside with a rock in one hand and a feather in the other. He loves to daydream about how things work. Today he wants to run a test. The rock feels heavy. The feather feels light. What happens when he drops them both?

Page 2
On the left side of the image, an elephant stands gripping a small dark rock tightly in the curled tip of its trunk, holding it up as if examining it. The elephant has its mouth slightly open and appears curious or contemplative. The scene is set outdoors against a warm orange sky with a bright yellow sun near the top centre, suggesting a hot, sunny day. The right side of the image is plain orange-toned background.

A rock is strong and solid. Out in the hot sunshine, it stays cool all day long. A big beast grips it in the tight curl of its trunk, but nothing can crush a rock or make it bend.

Page 3
On the right side of the image, The Boy is leaning forward with both arms outstretched, pushing against a massive elephant that is sitting stubbornly on the ground. His body is braced low with legs bent, showing a determined effort, but the elephant remains completely unmoved, sitting calmly with a placid expression. The scene is set outdoors on flat, sandy ground under a pale blue sky, with the left side left as open background.

Just then, a big beast walks up the pathway to say hello! A rock is a bit like it. Both have a lot of mass and stay put. Try pushing one down a driveway and you will not get far! The boy pushes with all his might, but the big beast will not move one inch.

Page 4
On the left side of the image, The Boy stands facing the viewer, holding a dark rock in his right hand (lowered slightly) and a light feather in his raised left hand. He looks up toward the feather with a curious, contemplative expression, as if comparing the weight of the two objects. The background is a warm, plain orange with no other objects or characters.

A feather is nothing like a rock. It is so soft and light that it can float in a breeze. The boy holds them both and starts to daydream. One could blow away in the wind. The other stays right where it is.

Page 5
On the right side of the image, The Boy stands holding a large dark rock above his head with both hands. The rock has "?kg" written on it in white chalk-like text. The Boy has a curious, slightly strained expression with wide eyes and an open mouth, as if wondering how heavy the rock is. The background is a warm, plain yellow-orange tone with no other objects or characters.

Now he wants to find out how heavy the rock is. It is hard to forecast that just by picking it up. He lifts the rock high above his head. How heavy can it be? He will not find the answer without the right tool.

Page 6
On the left side of the image, Dad stands holding up a traditional balance scale with his right arm raised, looking confident and helpful with a slight smile. The Boy stands beside him at a lower height, peeking out from behind Dad with wide, curious eyes, watching the scale. One pan of the scale holds a cluster of round purple objects (used as counterweights), while the other pan sits empty, ready for the rock. The scene is set outdoors in a suburban American yard on a clear day, with green bushes and a blue sky with a few white clouds in the background. The right side of the image is open sky, clear for text.

He asks his dad for help. Dad comes up the driveway with a set of scales. That is the right tool for the job! The boy's eyes go wide. Now they can find out the real answer.

Page 7
On the right side of the image, Dad stands at a three-quarter angle holding a clear flask filled with water in one hand, presenting it proudly with a confident smile. Next to him, a simple diagram shows the filled water flask next to an equals sign and a 1kg weight, illustrating the concept that the water-filled flask weighs exactly one kilogramme. Small radiating lines surround the diagram for emphasis. The background is plain white. The left side of the image is clear for text.

Dad fills a flask with water, right up to the top. 'One full flask is our benchmark,' he says with a grin. He draws it on a board with pride. Now they can set the rock on the scales and test it!

Page 8
On the left side of the image, a large balance scale dominates the scene. On the left pan, ten cows stand huddled together, looking wide-eyed and slightly bewildered, their combined weight pulling that side of the scale down lower. On the right pan, 200 dogs of various sizes and breeds are crammed into a large cardboard box labelled "200," sitting higher up as the scale tips in the cows' favour. The background is split with a bright turquoise colour on the left and yellow on the right, with the right portion remaining as plain background space.

'But Dad, does more stuff always have more mass?' The Boy asks. 'Nope!' Dad says. 'Ten cows can outweigh two hundred dogs in a cardboard box. Mass is about the stuff packed inside, not how many things you have.'

Page 9
On the right side of the image, a large painted Earth globe floats against a plain white background, showing blue oceans and green continents in a loose, watercolour-style illustration. The left side of the image is entirely clear white space. The composition is simple and conceptual, emphasising the vastness of the world in relation to the page's theme of weighing the Earth.

The world is far too big for any set of scales. But can we still find out how heavy it is? Yes! This is not just a daydream. We can use maths to work out the mass of the whole Earth.

Page 10
On the left side of the image, a large grid of many identical blue water jugs or gallon containers fills the space, with the number "5,974,000,000,000,000,000,000" written below them. An equals sign sits in the centre, and to its right is a colourful illustration of Earth shown as a globe with blue oceans and green landmasses. The right portion of the image is plain white background. The composition is a simple infographic-style visual comparing the massive number of containers to the weight of the Earth.

Look at all those big tubs of water! It would take more than five billion billion of them to match the mass of the Earth. That number is so big it is hard to say out loud. No matter how you look at it, our planet is very heavy.

Page 11
On the right side of the image, a large balance scale hangs from above against a bright blue sky with soft clouds. The left pan of the scale holds an enormous, overflowing pile of feathers that towers upward, while the right pan holds a small water flask (one kilogramme), with both sides balanced evenly. A tiny bird perches on the top beam of the scale, and a white butterfly flutters nearby. The dramatic size contrast between the massive mound of feathers and the compact flask visually emphasises the difference in volume for the same weight.

Now look at how many feathers it takes to match our water flask. The pile is as tall as an airport tower! Yet the scales sit even. The two sides match, but one is tiny and one is so tall.

Page 12
On the left side of the image, large blue-outlined raindrops fall from a soft watercolour sky filled with white clouds, against a turquoise and green-tinted background. The scene is an outdoor daytime sky view with scattered raindrop illustrations drifting downward, evoking a gentle rain shower. No characters are present — the composition is purely atmospheric, showing the rain referenced in the page text.

One raindrop is so light you can hardly feel it on your hand. But when raindrop after raindrop falls, they fill the whole sea! Next time the sunshine comes out after rain, think about all those drops. Small things can add up to something big.

Page 13
On the right side of the image, The Boy sits cross-legged on the pan of a large hanging balance scale, smiling contentedly with his arms wrapped around his knees. His pan is labelled "30 kg." Above him to the upper left, another pan holds a halved watermelon with a label reading "5 kg." To the far right, the tip of an elephant's trunk is visible, connected to a pan labelled "1000 kg." The left side of the image is plain white background.

The boy sits on the scale and smiles. He can outweigh something small, like the pan up high. But something very big can outweigh him by a lot! Go grab your notebook or a toy and guess how heavy it is.

Page 1 of 13
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