Provide water for shy animals near cover, like trees or bushes. Their bright colors attract butterflies and hummingbirds. Keep a diary on what animals are drawn to your habitat. Ask your parents or other adults how they use pesticides. Talk about the fact that not all bugs are bad.
Some species actually help to control unwanted pests.
You may also want to work together to explore whether there are any practical alternatives to using a pesticide. If possible, use a manual push mower instead of a gas or electric powered lawn mower. Be careful not to cut the grass too short.