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D2-5a Activity Help Fieldwork – Studying two different habitats You are going to study the environmental conditions of two different habitats. The habitats you are going to look at are a pond or river and a wood or grassland. Equipment notebook and pencil thermometer pH meter or soil testing kit screw top jar containing some distilled water, pH 7 light meter oxygen meter data storage device ping pong or tennis ball stopwatch 10 m tape measure Obtaining evidence 1 Your teacher will take you to study a habitat. Follow the instructions on Resource 1 on how to measure the environmental conditions. 2 As you collect your data, fill in the table. Grassland or wood Pond or river temperature light intensity pH of soil or water oxygen content (not applicable) flow rate (not applicable) Considering the evidence 3 When you have collected your data complete the sentences below. 1 The light intensity in the wood/grassland was than by the pond/river. This was because The pH of the soil was was and the pH of the river . The air temperature changed during the day, but the river temperature . This was because © Harcourt Education Ltd 2004 Catalyst 2 This worksheet may have been altered from the original on the CD-ROM. . Sheet 1 of 1