A solid, a liquid and a gas, each drawn with its particles in the same closed container, and the four changes between them. Print it labelled, to label, to cut and glue, or to sort twelve everyday things, each with its key.
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Labelled names the three states and the four changes on the picture and puts a sentence on each under it, or on the page after it where the paper is too small for both. To label leaves a numbered, empty box for each and puts the names in a word bank, and on Letter and A4 upright asks three questions that the answer key answers. To cut and glue prints the names in dashed tiles to cut out and glue into the boxes, then the labelled sheet as the key. Sort it lists twelve everyday things, from an ice cube to the bubbles in soda, to write in a column for each state under what that state does, with one more line in each column than it needs, so the lines do not give the count away; the key writes each thing in its column. In Colour the particles print blue; Ink saver prints them as outlines, to colour in.
NASA’s Glenn Research Center puts the difference this way. In a solid the particles are held tightly together, so a solid holds its shape and its volume stays the same. In a liquid the pull between them is weaker: a liquid takes the shape of its container, with a flat top, but keeps its volume. In a gas the pull is very weak, and a gas fills its whole container, taking both its shape and its volume. Liquids and gases are called fluids, because they flow.
Water as a gas, water vapor, cannot be seen. The white cloud over a boiling pot or a kettle, which most people call steam, is a mist of tiny drops of liquid water, as Wikipedia’s article on steam explains. The drops form as the vapor cools in the air, and cooling is what makes water vapor condense, NOAA’s JetStream says. So a boiling pot shows two changes at once, the water evaporating in the pot and condensing above it.
At normal air pressure, water freezes into ice below 0 °C (32 °F) and turns into water vapor above 100 °C (212 °F), NASA explains. Evaporation takes energy, such as the Sun’s heat, and when water vapor condenses that heat comes out again, NOAA’s JetStream adds: that is why the sheet’s top arrows are the warming ones. A change of state is a physical change, not a chemical one, so ice, liquid water and water vapor are all the same water.
Yes: scientists call plasma the “fourth state” of matter, NASA’s Glenn Research Center explains. It forms at the very high temperatures and pressures of the Sun, or around a spacecraft coming back from space, where atoms lose their electrons and leave charged particles behind. A plasma flows like a liquid or a gas, but its charged particles respond to electric and magnetic forces. The sheet keeps to the three states NASA calls the normal ones, the ones met every day.
All 118 elements on one landscape page, each with its atomic number, symbol, name and atomic weight, the weights as IUPAC’s commission on atomic weights gives them. Print it in full, without the weights, or with only the numbers to fill in, and the full table after it as the answer key.
Eight tools a young scientist uses, from a magnifying glass to a balance scale and a stopwatch: match each tool to its job, write each tool’s name from a word bank, or print the chart of all eight with what each is for. Answer keys follow.
Three magnet sheets: things to guess about and then test with a magnet; pairs of bar magnets to mark attract or repel, with the answer key; and a bar magnet with its poles, its field lines and the paper clips at its ends, labelled or to label.
The lever, wheel and axle, pulley, inclined plane, wedge and screw, each drawn to show how it works, with what it does and where you find it. Print the chart, the sheet to label or to match, each with its answer key, or a hunt for one of each at home or at school.
The four stages of a monarch butterfly drawn in a cycle, egg, caterpillar, chrysalis and butterfly, with an arrow from each to the next and what happens at each stage. Print it labelled, to label with a word bank, or with the four pictures to cut out and glue in order; the answer key follows.
The four stages of a northern leopard frog drawn in a cycle, egg, tadpole, froglet and frog, with an arrow from each to the next and what happens at each stage. Print it labelled, to label with a word bank, or with the four pictures to cut out and glue in order; the answer key follows.
The life cycle of a flowering plant, a bean, drawn in four stages, seed, sprout, seedling and adult plant with its flowers and pods, with an arrow from each to the next and back to the seed. Print it labelled, with what happens at each stage, to label with a word bank, or to cut and glue in order; the answer key follows.
The four stages of a chicken drawn in a cycle, egg, embryo, chick and hen, with an arrow from each to the next and what happens at each stage, the days counted from the egg. Print it labelled, to label with a word bank, or with the four pictures to cut out and glue in order; the answer key follows.
The four stages of a ladybug drawn in a cycle, eggs, larva, pupa and adult, with an arrow from each to the next and what happens at each stage. Print it labelled, to label with a word bank, or with the four pictures to cut out and glue in order; the answer key follows.
The four stages of a pumpkin drawn in a cycle, seed, sprout, flower and pumpkin, with an arrow from each to the next and back to the seed. Print it labelled, with what happens at each stage, to label with a word bank, or with the four pictures to cut out and glue in order; the answer key follows.
The four stages of an apple tree drawn in a cycle, seed, young tree, blossom and apple, with an arrow from each to the next and back to the seed. Print it labelled, with what happens at each stage, to label with a word bank, or with the four pictures to cut out and glue in order; the answer key follows.
The four stages of a wild turkey drawn in a cycle, eggs in a nest, poult, young turkey and a tom with his tail spread, with an arrow from each to the next and what happens at each stage. Print it labelled, to label with a word bank, or with the four pictures to cut out and glue in order; the answer key follows.
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