Crossword

Complete the crossword, then click on the "Check" button.
Click on a number in the grid to see the clue or clues for that number.
If you are stuck, you can click on "Hint" to get a free letter. You will lose marks every time you get a hint.
Best of luck!
1    2    3    4    5    6     7   8   
    9          10     
        11         
12     13              
     14    15     16       
17         18    19        
         20      21    
  22      23    24         
     25     26     27      
28     29              
     30   31           
32   33                
     34     35    36       
37      38             
   39      40          

Across:

1. A child has more of these than an adult (5)
5. A direction on the compass (4)
7. This is the chemical symbol for argon gas (2)
9. This piece of laboratory apparatus is used to hold hot objects (5)
11. Pieces of iron placed at the poles of a magnet so that the magnet does not lose its strength (7)
12. Water heated to 100 degrees Celsius and above (5)
14. The smallest part of an element that still has the properties of the element (4)
16. To be present too soon (5)
17. Silver coloured metal used in coins (6)
18. The part of a plant that absorbs minerals and water from the soil (5)
20. There are two of these on each magnet (5)
22. Microscopic organism that can cause disease (5)
24. The number of fingers you have (3)
25. The chemical symbol for Indium (2)
26. A creature with six legs (6)
28. Isaac ______ a famous scientist (6)
30. One of your fingers (6)
32. The name of the solid left after filtering (7)
34. This body orbits the earth (4)
36. It may be a solid, liquid or a gas (5)
37. A yellow citrus fruit (5)
39. After a cold night, this type of moisture is found on the ground (3)
40. This is added to drinking water to prevent tooth decay (8)

Down:

1. Type of gas heater found in the laboratory (6,6)
2. This is the organ of scent (4)
3. This part of the plant supports it (4)
4. Does not react (5)
5. He lives in an igloo (6)
6. These are found inside our bodies (9)
8. Iron gets to be in this state when left in the rain (5)
10. This is the unit of temperature, measured in either Celsius or Fahrenheit (6)
13. This is a joint in the lower part of our body (5)
14. Drinks cans are made of thgis metal (9)
15. general name for a mineral from which metals are extracted (3)
19. To get a very hot bunsen flame, the airhole must be ____ (4)
21. This type of solution contains as much solute as it can dissolve (9)
23. The chemical symbol for the element tin (2)
24. The standard unit of this quantity is the second (4)
27. This is an imaginary line around the middle of the earth (7)
29. The gauze is usually placed on this three-legged piece of apparatus (6)
31. This inert gas is to be found in advertising signs (4)
33. Both of these are part of the organ for sight (4)
35. This means nothing or zero (3)
38. Chemical symbol for the noble gas in 31 down (2)