This experiment explores the change from solid to liquid and back again using heat. Learn more: Science Buddies/Fog Catcher 10. Use a piece of nylon stocking to catch the fog and turn it back into water. Simulate fog by spraying water from a bottle. If you’re really feeling ambitious, make your own ice cream for the floats! It’s a fun way to explore the change from liquid to solid too. Speaking of delicious science, root beer floats are one of our favorite states of matter activities! We guarantee this one will be a hit. Use Cheerios (or M&Ms, or raisins… you get the idea) to diagram the action of atoms in the various states of matter. As they color in the pictures, talk about the differences between the states of matter. Kids who love to color will enjoy these free printable worksheets. Learn more: Gift of Curiosity/States of Matter using Water 5. Start with ice cubes, melt them down to water, then bring them to boiling to watch steam form. Discover the states of matter with waterĪll you need is water for one of the easiest states of matter activities. Learn more: Gift of Curiosity/Sort and Match States of MatterĤ. Then have kids sort them by states of matter. Grab the free printable cards at the link, or cut pictures out of magazines. Matter: Physical Science for Kids (Diehn/Li).What Is The World Made Of? (Weidner Zoehfeld/Meisel).Read a book or two to introduce younger learners to the concepts of solids, liquids, and gases. Start with an anchor chartĪn anchor chart like this gives students something to reference as they learn the concepts and complete states of matter activities. They’ll enjoy the hands-on aspects as they get to see science in action! 1. These states of matter activities help them learn the physical changes that take place as matter converts from solid to liquid to gas. Understanding the various states of matter is one of the key concepts kids need for exploring chemistry and physics. `timescale 1ns/1nsįSM Test (.i_clk(in_clk). This works according to your expectation. I wrote the design module and also created a test bench for it. Should be: output = (state = state0) & input1 Īlthough its too late but i got on the band wagon of learning Verilog and decided to take a shot at your inquiry. Also you likely don't want a bitwise AND here, so use the regular and &. If you want to know if the state machine is in state0, then you need to compare the current state with the constant state0. The width of the states should be the same width of the localparams that you use to define the state names, or more generically the width should be log2(number of input states).Ĭan I write these kind of assertions at the end like state0 & input1? Yes you must declare a dimension, or else your design will catastrophically fail when verilog silently truncates all your states to 0 or 1. Outputs are wires by default, though you can also declare output reg if you want a register instead. Inputs are always wires, though it doesn't really matter as you don't assign to them. Must I provide a vector dimension for the reg state, nextstate? If yes, how to I know which dimension to pick?Ĭan I write these kind of assertions at the end like state0 & input1? Or should I use state = state0 & input1 = ? - yes, what? The statemachine detects for an input stream of 0 and 1, if the count of 1s can be divided by 3 (or simply: if there have been 3 times number 1).ĭo I have to define the inputs + outputs as reg or wire? Or is input and output! sufficient? I'm trying to convert a flow chart simple state machine into Verilog code.īut I'm somehow stuck with the following, and as I have hardly any knowledge in Verilog I'm probably missing something.
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