This happens because of the formation of buoyancy force which makes drawings to dance or float on top of the water. That is the reason, when we pour water to the ceramic plate, the drawings get easily separated off the plate. a polymer. A piece of wood floats on water. This film is insoluble and less dense in nature. Ans. Draw a stick figure or any design you want making sure the lines are connected. Just curious, thought about erasers floating in water while I passed a big lake. Why did the Vikings settle in Newfoundland and nowhere else? (viii) Vinegar dissolves in water. Also, the ink used in dry erasers is kind of plastic i.e. Pumice tends to be so light that it floats on water until its vesicles fill and it eventually sinks. When the pictures are drawn on any smooth surfaced object using dry erase markers, the ink becomes a thick solid film. Whereas the dry erasers use minimal adhesive inks that are easily wiped off from any surface. It is also insoluble which means it can’t dissolve in liquids and is less dense compared to the water’s density. These markers are usually used to write on white boards or glass surfaces and can easily be erased to make space for more writing or drawing. (vii) Sand settles down in water. False. 2. Blow on him to … The eraser is heavier than the amount of water it … (vi) Oil mixes with water. Observe carefully whether the mark is going off the plate. vii) Sand settles down in water. The ink can’t be dissolved in liquid and it’s less dense than water. Most wood (not all) is less dense than water so it is common to see wood floating. Copyright © 2020 Multiply Media, LLC. False. Learn to make and play with perfect Non Newtonian Fluid - The Oobleck. 5) In what way the temperature of water effect the results of the experiment? The object will sink if the upthrust is smaller than its weight. An eraser floats in water. False. This ink has another property, it is not soluble in water. (v) Sugar does not dissolve in water. It will just lie there, on top of the water. • Things that are heavy for their size tend to sink in water. Ships are able to displace enough water to float because they are less dense than water. For example, a ship that weighs 1,000 pounds sinks until 1,000 pounds of water are displaced, and then it floats. (v) Sugar does not dissolve in water. iv) A piece of wood floats on water. (ii) A notebook has lustre while eraser does not (iii) Chalk dissolves in water. The dry erase markers ink can easily tint the leaky porous surfaces. True. A ship's density is determined by both the material used to build it, such as wood or steel, and the open spaces within the ship. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. This directs the places where the boats are tied up, presence of submerged dangers, etc. (g) Sand settles down in water. (vi) Oil mixes with water. iv) A piece of wood floats on water. (vii) Sand settles down in water. And when the water slipped under these drawings the thick solid film formed by the ink gets off the smooth surface. That means the ink used here is strongly adhesive in nature so it will not come off easily from the surface. Water; Dry Erase Marker; Pie pan (glass or ceramic) Make sure your pan has a flat surface. Micro-organisms cannot live in water. A pair of slanting lines at the joining point of vertical line to the circle and the other pair at the end of the vertical line. That’s it! Draw a stick figure or any design you want making sure the lines are connected. You don’t even have to touch it, your coffee breath will be powerful enough. Dry Erase Marker. Answer: Stone is transparent, while glass is opaque. Answer 4: – i) False ii) False iii) False iv) True v) … Answer 4: – i) False ii) False iii) False iv) True v) … True. In this activity, we are going to make the drawing objects float using just 2-3 simple ingredients. Beautiful Popsicle Stick Snowflakes : Christmas Tree Ornaments, 10 Best Hoverboard for 8 Year Old – Buying Guide, Triple Point of Water Experiment Demonstration, How to Make Oobleck (A Perfect Non Newtonian Fluid), Floating Egg Science Experiment ( Using Salt, Sugar & Saline Water), Cool Watermelon Science Experiments for Kids, {Hilariously Funny} Science Jokes for Kids, 50+ Science Experiments for 1-2 Year Olds (Toddlers), 7-9 Year Olds : Science & STEM activities, Girls In STEM Scholarship by GoScienceGirls, Go Science Girls – Science Activities for Curious Little Girls, Science Experiments with Everyday Household Items. ii) A notebook has lustre while eraser does not. (e) Sugar does not dissolve in water. (ii) A notebook has lustre, while an eraser does not. (d) A piece of wood floats on water. Easily erased without the witnessing any tiny mark mainly, the drawings made are wiped... 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