三年级下册科学实验报告

三年级下册科学 实验报告 化学实验报告单总流体力学实验报告观察种子结构实验报告观察种子结构实验报告单观察种子的结构实验报告单 河洑镇中心小学科学实验 报告 软件系统测试报告下载sgs报告如何下载关于路面塌陷情况报告535n,sgs报告怎么下载竣工报告下载 单 年 月 日 星期 第 节 三 年级 组 组长: 组员: 实验名称 探究声音是怎样产生的 实验目的 知道声音的由物体振动产生的。 所用器材 音叉 盛满水的水杯 气球 钢尺 队鼓 (装置) 实 1、敲响音叉后马上放入水杯，观察水的变化; 验 2、在队鼓上放豆子，敲响鼓，观察豆子的变化; 步 3、拨动钢尺，听一听; 骤 4、把气球放在队鼓上，敲一敲，观察气球。 实 验 声音是由物体的振动而产生的。 结 果 认识与结论 物体停止振动，声音也停止。 a variety of connectors, supporting or providing temporary support. Lateral template installation, install a waterproof top bracing, clean the wall of debris, then install the template in place on the inside, the template is in place to ensure the template bottom line with the elastic edge of the template, template template control lines when the lines are not visible (parallel with the template invocation line 20 cm) check the template in place. Accessories must be inserted firmly, u-shaped card on the same seam should not be clamped in the same direction. D. support: templates in place immediately after the installation template supporting structure, initially adjust the verticality of the template, and then follow the advance reserved hole insert the bolt in the template. Wall bolts should be straight, interspersed with cable tension bolts, hard top. Pillar and bracing support surface should be flat pad solid, to have enough pressure area. Support should focus on for the steel cord. 3, and beam, and roof construction (1) main process: play axis, and elevation control line ? beam, and Board template support erection ? Latrun line installation beam end of pipe ? installation Liang Dimo, and brush off touch agent ? lashing beam steel ? beam steel hidden qualified ? installation beam side die and reinforcement ? Latrun line installation steel beams ? placed wood Fang ? tile multilayer Board ? template gap processing ? uniform brushing release Agent ? template pre check (2) construction points: a,. stay wall body template demolition Hou, 河洑镇中心小学科学实验报告单 年 月 日 星期 第 节 三 年级 组 组长: 组员: 实验名称 探究声音的传播 实验目的 了解三种状态下声音传播的途径。 所用器材 闹钟 塑料袋 水槽 水 (装置) 1、 把闹钟放到空气中，能否听到声音, 实 2、 用手轻轻敲击桌面或桌腿，直到耳朵听到声音为 验 止。把耳朵贴在桌面上继续敲击或挠，听声音; 步 3、 把闹钟用塑料袋扎好放到水槽中，将耳朵紧贴水槽 骤 听声音。 实 1、听到声音; 验 2、听到声音; 结 3、听到声音。 果 认识与结论 声音可以通过气体、固体、液体传播。 a variety of connectors, supporting or providing temporary support. Lateral template installation, install a waterproof top bracing, clean the wall of debris, then install the template in place on the inside, the template is in place to ensure the template bottom line with the elastic edge of the template, template template control lines when the lines are not visible (parallel with the template invocation line 20 cm) check the template in place. Accessories must be inserted firmly, u-shaped card on the same seam should not be clamped in the same direction. D. support: templates in place immediately after the installation template supporting structure, initially adjust the verticality of the template, and then follow the advance reserved hole insert the bolt in the template. Wall bolts should be straight, interspersed with cable tension bolts, hard top. Pillar and bracing support surface should be flat pad solid, to have enough pressure area. Support should focus on for the steel cord. 3, and beam, and roof construction (1) main process: play axis, and elevation control line ? beam, and Board template support erection ? Latrun line installation beam end of pipe ? installation Liang Dimo, and brush off touch agent ? lashing beam steel ? beam steel hidden qualified ? installation beam side die and reinforcement ? Latrun line installation steel beams ? placed wood Fang ? tile multilayer Board ? template gap processing ? uniform brushing release Agent ? template pre check (2) construction points: a,. stay wall body template demolition Hou, 河洑镇中心小学科学实验报告单 年 月 日 星期 第 节 三 年级 组 组长: 组员: 实验名称 改变光的传播路线 实验目的 知道镜子能反光。在镜子里能看到物体的像。 平面镜 硬纸板 手电筒 纸 尺子 小瓶 所用器材 (装置) 两面大小不同的镜子 小玩具熊猫等 实 验 1、让手电筒发出的光通过缝隙照到镜子上能反射回来; 步 2、拿着镜子，站在向阳的地方是阳光射不到墙上。 骤 实 验 镜子能改变光的传播路线。 结 果 认识与结论 光在传播中遇到镜子会发生反射。 a variety of connectors, supporting or providing temporary support. Lateral template installation, install a waterproof top bracing, clean the wall of debris, then install the template in place on the inside, the template is in place to ensure the template bottom line with the elastic edge of the template, template template control lines when the lines are not visible (parallel with the template invocation line 20 cm) check the template in place. Accessories must be inserted firmly, u-shaped card on the same seam should not be clamped in the same direction. D. support: templates in place immediately after the installation template supporting structure, initially adjust the verticality of the template, and then follow the advance reserved hole insert the bolt in the template. Wall bolts should be straight, interspersed with cable tension bolts, hard top. Pillar and bracing support surface should be flat pad solid, to have enough pressure area. Support should focus on for the steel cord. 3, and beam, and roof construction (1) main process: play axis, and elevation control line ? beam, and Board template support erection ? Latrun line installation beam end of pipe ? installation Liang Dimo, and brush off touch agent ? lashing beam steel ? beam steel hidden qualified ? installation beam side die and reinforcement ? Latrun line installation steel beams ? placed wood Fang ? tile multilayer Board ? template gap processing ? uniform brushing release Agent ? template pre check (2) construction points: a,. stay wall body template demolition Hou, 河洑镇中心小学科学实验报告单 年 月 日 星期 第 节 三 年级 组 组长: 组员: 实验名称 让小灯泡亮起来 实验目的 自主认识小灯泡、电池、导线的构造。 所用器材 电池 电池夹 开关 小灯泡 灯座 导线 回形针 纸片等 (装置) 实 1、用一根导线、一个灯泡、一节电池，连接好电路，让小灯泡亮 验 起来; 步 2、增加电池夹、小灯座、开关，让小灯泡亮起来。 骤 实 验 简单电路由电源、用电器、开关和导线四个部分组成。 结 果 认识与结论 灯泡要亮须有电源、导线、开关等。 a variety of connectors, supporting or providing temporary support. Lateral template installation, install a waterproof top bracing, clean the wall of debris, then install the template in place on the inside, the template is in place to ensure the template bottom line with the elastic edge of the template, template template control lines when the lines are not visible (parallel with the template invocation line 20 cm) check the template in place. Accessories must be inserted firmly, u-shaped card on the same seam should not be clamped in the same direction. D. support: templates in place immediately after the installation template supporting structure, initially adjust the verticality of the template, and then follow the advance reserved hole insert the bolt in the template. Wall bolts should be straight, interspersed with cable tension bolts, hard top. Pillar and bracing support surface should be flat pad solid, to have enough pressure area. Support should focus on for the steel cord. 3, and beam, and roof construction (1) main process: play axis, and elevation control line ? beam, and Board template support erection ? Latrun line installation beam end of pipe ? installation Liang Dimo, and brush off touch agent ? lashing beam steel ? beam steel hidden qualified ? installation beam side die and reinforcement ? Latrun line installation steel beams ? placed wood Fang ? tile multilayer Board ? template gap processing ? uniform brushing release Agent ? template pre check (2) construction points: a,. stay wall body template demolition Hou, 河洑镇中心小学科学实验报告单 年 月 日 星期 第 节 三 年级 组 组长: 组员: 实验名称 导体与绝缘体 实验目的 知道什么是导体、什么是绝缘体。 电路板 铜丝 铅笔芯 橡皮筋 灯头 干电池 铁丝 所用器材 (装置) 木条 陶瓷 玻璃棒 毛线 灯泡 开关 导线 实 1、把导线一端连接在铜丝、铅笔芯、铁丝，另一端连接在开关上， 验 启动开关，看灯泡是否亮; 步 2、同理连接橡皮筋、木条、玻璃棒、毛线，看灯泡是否亮; 骤 3、给上述 材料 关于××同志的政审材料调查表环保先进个人材料国家普通话测试材料农民专业合作社注销四查四问剖析材料 分类。 实 验 1、容易使电流通过的物体叫导体; 结 2、不容易使电流通过的物体叫绝缘体。 果 认识与结论 物体可以分为导体和绝缘体。 a variety of connectors, supporting or providing temporary support. Lateral template installation, install a waterproof top bracing, clean the wall of debris, then install the template in place on the inside, the template is in place to ensure the template bottom line with the elastic edge of the template, template template control lines when the lines are not visible (parallel with the template invocation line 20 cm) check the template in place. Accessories must be inserted firmly, u-shaped card on the same seam should not be clamped in the same direction. D. support: templates in place immediately after the installation template supporting structure, initially adjust the verticality of the template, and then follow the advance reserved hole insert the bolt in the template. Wall bolts should be straight, interspersed with cable tension bolts, hard top. Pillar and bracing support surface should be flat pad solid, to have enough pressure area. Support should focus on for the steel cord. 3, and beam, and roof construction (1) main process: play axis, and elevation control line ? beam, and Board template support erection ? Latrun line installation beam end of pipe ? installation Liang Dimo, and brush off touch agent ? lashing beam steel ? beam steel hidden qualified ? installation beam side die and reinforcement ? Latrun line installation steel beams ? placed wood Fang ? tile multilayer Board ? template gap processing ? uniform brushing release Agent ? template pre check (2) construction points: a,. stay wall body template demolition Hou, 河洑镇中心小学科学实验报告单 年 月 日 星期 第 节 三 年级 组 组长: 组员: 实验名称 磁铁的性质 实验目的 了解磁铁的基本特性和磁铁的指向。 钉子 纸 橡皮 别针 铜线 铝线 泡沫塑料 尺子 所用器材 (装置) 回形针 水槽 磁铁 实 1、用磁铁分别吸钉子、回形针、大头针，观察现象; 验 2、用磁铁分别吸橡皮、纸、铜线、铝线、泡沫塑料、尺子、水槽， 步 观察现象; 骤 3、给上述材料分类。 实 验 磁铁能吸引铁质东西最多。 结 果 认识与结论 磁铁只能吸引铁质物质。 a variety of connectors, supporting or providing temporary support. Lateral template installation, install a waterproof top bracing, clean the wall of debris, then install the template in place on the inside, the template is in place to ensure the template bottom line with the elastic edge of the template, template template control lines when the lines are not visible (parallel with the template invocation line 20 cm) check the template in place. Accessories must be inserted firmly, u-shaped card on the same seam should not be clamped in the same direction. D. support: templates in place immediately after the installation template supporting structure, initially adjust the verticality of the template, and then follow the advance reserved hole insert the bolt in the template. Wall bolts should be straight, interspersed with cable tension bolts, hard top. Pillar and bracing support surface should be flat pad solid, to have enough pressure area. Support should focus on for the steel cord. 3, and beam, and roof construction (1) main process: play axis, and elevation control line ? beam, and Board template support erection ? Latrun line installation beam end of pipe ? installation Liang Dimo, and brush off touch agent ? lashing beam steel ? beam steel hidden qualified ? installation beam side die and reinforcement ? Latrun line installation steel beams ? placed wood Fang ? tile multilayer Board ? template gap processing ? uniform brushing release Agent ? template pre check (2) construction points: a,. stay wall body template demolition Hou,