Across
1 what grows on top of your head (4)
3 having a high level of mental ability and good at understanding ideas and thinking clearly (11)
9 not dead, alive (6)
10 a word used to ask or talk about how successful someone is at something; auxiliary verb (2)
11 a particular part of a country, town, etc (4)
12 a salty body of water (3)
14 one of the thin body parts that a fish uses to swim (3)
15 definite article (3)
16 a preposition used to say where someone or something goes (2)
17 the science that is concerned with studying the structure of substances and the way that they change or combine with each other (9)
19 a small metal container in which food or drink is sold (3)
20 a preposition used to show what a part belongs to or comes from (2)
21 the process of getting faster (12)
22 the ability to react to very small changes in light, heat, movement etc (11)
23 to move from one place to another (2)
25 a set of several carriages that are connected to each other and pulled along a railway line by an engine (5)
26 demonstrative pronoun for something nearby (4)
28 the state of being away (7)
30 the number between one and three (3)
31 deliberately hurting people or animals (5)
33 a conjunction used between two words or phrases to show that either of two things is possible, or used before the last in a list of choices (2)
34 worried or anxious (8)
36 an extremely large and dangerous fire (7)
37 negation (3)
38 money paid to the government on income or goods (3)
Down
2 a written or spoken request to someone, asking them to go somewhere or do something (10)
4 to train a wild animal to obey you and not to attack people (4)
5 cover for a pot or jar (3)
6 a word used when talking about something that might happen or be true, or might have happened (2)
7 the number that comes after twenty (6-3)
8 relating to or involving more than one nation (13)
9 a small cupboard with a lock where you can leave clothes or possessions while you do something (6)
11 any thing, event, situation, etc, when it is not important to specifiy which (8)
12 an adverb used when emphasizing the degree or amount of something by saying what the result is (2)
13 the gray and black remains when you burn wood or paper (3)
14 the last day of the workweek (6)
17 the space between a woman’s breasts (8)
18 the power that is carried by wires, etc and is used to make light or heat, to make machines work, etc (11)
22 a group of similar things (3)
24 white or gray fluffy thing in the sky, often producing rain (5)
27 not moving (5)
29 an eating utensil that has a small, bowl-shaped part and a long handle (5)
31 the front part of your face below your mouth (4)
32 flat and level, with no parts that are higher than other parts (4)
35 opposite of in (3)