What Are Plants? -- How Are Plants Different? -- What Do Plants Need? -- Why Do Plants Live in Different Places? -- How Do Plants Make Food? -- How Do Plants Provide Energy for Animals? -- Why Do Plants Have Seeds? -- How Do Plants Make New Seeds? -- How Do Seeds Travel? -- How Do Plants and Animals Help Each Other? -- Which Plants Do We Use for Food? -- How Are Plants Important to Living Things? -- What Makes it Hard to Survive? -- How Do We Protect Plants?.