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3. 1010 2020 1010 4040 3030 2020 1010 4040 3030 2020 1010 4040 3030 2020 4040 3030 1010 2020 3030 4040 Vocabulary Terms ElementsCompounds Mixtures & Solutions Misc.

4. 10 An element that is shiny and that conducts heat and electricity well. Metal Click here for answer back

5. 20 When one substance spreads out evenly into another substance. back Click here for answer Dissolving

6. 30 What is a pure substance? back Click here for answer A substance in which there is only one type of particle.

7. 40 Cereal and milk, salt, and sodium: which of these is a compound back Click here for answer Salt

8. 10 What is a metalloid? back Click here for answer An element that has properties of both metals and nonmetals.

9. 20 Which type of element is dull in appearance and is a poor conductor of heat and electricity? back Click here for answer Nonmetal

10. 30 Define an element. back Click here for answer A substance that cannot be broken down into simpler substances by physical or chemical means.

11. 40 Why are elements classified as metals, nonmetals and metalliods? back Click here for answer Because each category of elements have similar properties

12. 10 What type of change occurs when two or more elements combine to form a compound? back Click here for answer Chemical change.

13. 20 Name two compounds other than water back Click here for answer Examples Vinegar, Baking Soda

14. 30 True or False: The elements in a compound keep their properties? back Click here for answer False. They undergo a chemical change, meaning their matter changes and they do not keep their properties. Sodium Chloride (salt) is formed by the elements sodium (which reacts violently with water) and chlorine (poisonous gas). When they undergo a chemical change together they create a harmless substance that is safe to eat.

15. 40 What are the two ways to break apart a compound like water? back Click here for answer Add heat or electricity

16. 10 What is a mixture? back Click here for answer A combination of two or more substances that can be separated by physical changes.

17. 2 When a mixture seems to be a single substance. One substance dissolves in another. back Click here for answer Solution

18. 30 What is the definition of a solvent? back Click here for answer Solvent – In a solution, the substance in which the solute is dissolved (water).

19. 40 Which of these lemonade solutions is the most concentrated? 2 scoops and 1400 Ml of water 1 scoops and 500 Ml of water 2 scoops and 1200 Ml of water Why? back Click here for answer 1 scoops and 500 Ml of water because if you divide the scoops by the amount of water you would get 1 scoop per 500 ml. The second one is 1 scoop per 700 Ml of water. The third is 1 scoop per 600 ml of water.

20. 10 Name which is the compound, which is the element, and which is the mixture Koolaid salt gold back Click here for answer Compound -Salt, Element - Gold, Mixture Koolaid

21. 20 A solution in which no more solute will dissolve is called: A. Diluted B. Solute C. Saturated D. mixture back Click here for answer C Saturated

22. 30 What are 3 ways to increase the rate of dissolving a substance (Hint: Think of the sugar cube lab). back Click here for answer 1.Mixing 2.Heating 3.Crushing

23. 4 0 Explain how you would separate a mixture of salt, diatomatious earth, iron filings. back Click here for answer Use a magnet to get the iron filings out. Then pour water into the diatomatious earth and salt. Use a coffee filter to get the diatomatious earth filtered. Then pour the the remaining salt water into a petri dish to evaporate.