It sounds like you're conducting an interesting experiment using shredded milkweed root and observing its effects on an earthworm. Here are some points to consider based on your description:
1. **Concentration of the Mixture**: You used 0.4g of shredded milkweed root in 20.0g of water, which gives a concentration that may or may not be strong enough to have significant effects. It's important to compare this with your previous experiments.
2.


