Solve these clues to fill the grid.
- Clear liquid we drink that falls as rain
- 1 Across
- A fertilizer that is derived from animal or vegetable matter
- 4 Across
- A substance formed by chemical union of two or more elements or ingredients in definite proportion
- 5 Across
- An essential structural component of living cells and source of energy for animals (plural)
- 8 Across
- An elementary particle with negative charge (plural)
- 10 Across
- A substance consisting of two or more substances mixed together
- 12 Across
- An elementary particle with 0 charge and mass about equal to a proton (plural)
- 14 Across
- A particle that is electrically charged
- 15 Across
- The smallest component of an element having the chemical properties of the element (plural)
- 16 Across
- Any of several complex proteins that are produced by cells and act as catalysts in specific
- 2 Down
- A homogeneous mixture of two or more substances
- 3 Down
- That which has mass and occupies space
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- A mixture in which fine particles are ___ in a fluid where they are supported by buoyancy
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- An abstract part of something
- 9 Down
- An oily organic compound insoluble in water but soluble in organic solvents (plural)
- 11 Down
- A stable particle with positive charge equal to the negative charge of an electron (plural)
- 13 Down